The Holy Quran is replete with examples of men who stood for the truth and those who opposed it. The former sacrificed everything they had to defend the truth and the latter was ready to destroy everything around them to satiate their greed and selfishness.

The Book of Allah invites us to reflect upon personalities, nations, and events of the past. Whether it is pure men like Prophet Ibrahim (AS), Prophet Musa (AS) and Prophet Isa (AS) or evil men who opposed them and their mission like Nimrood, Firon (Pharoah), or Bani Israil, all of them have a lesson for us. These are not just stories to read and move on, they contain messages for our lives. And rightly so, we read in the Holy Quran:
"There is certainly a moral in their accounts for those who possess intellect. This [Quran] is not a fabricated discourse; rather, it is a confirmation of what was [revealed] before it, and an elaboration of all things, and a guidance and mercy for a people who have faith. (12:111)

Similarly, Imam Ali (AS) says: Learn lessons from past events for future events, because they are similar to one another. (Nahjul Balagha Letter 69)
One such incident of the past that changed the history of Islam forever, is the event of Karbala. No mention of Karbala is complete without Hurr ibn Yazid Ar-Riyahi. He is an example for those who reflect upon his journey, his actions and his martyrdom. He encourages, inspires and motivates the believers through his actions in Karbala. 

Background

Hurr literally means a freeman in Arabic, and truly so he lived up to his name. 
Hurr Ibn Yazid Ar-Riyahi was the general of the Ummayad army dispatched from Kufa, (Iraq) to intercept Imam Al-Hussain (AS), the third infallible Imam. Ubaydullah ibn Ziyad, the newly appointed governor of Kufa issued the command to guard all entrances and exits to Kufa in order to intercept al-Hussain for an oath of allegiance to Yazid. Hurr was ordered along with his 1,000 soldiers to intercept Imam Hussain(AS) and his followers before they reached Kufa.

When he intercepted Imam Hussain (AS) at Dhu Hussam, Hurr and his men had ran out of water. The Imam(AS) ordered his companions to satiate Hurr and his army, including the cavalry. Hurr and his men offered their prayers with the Imam and listened to his sermons. However, on subsequent orders from the tyrant governor of Kufa, Ubaidullah Ibn Ziyad, Imam Hussain and his family were forced to encamp in Karbala. Hurr was of the notion that the Imam (AS) will not be killed in Karbala, he would somehow persuade him to go elsewhere. But he was perturbed when he realized that Umar Ibn Sa'ad who was sent by Ubaidullah had come with orders to kill Imam Hussain. On one hand was his position, family and wealth and on the other hand was the grandson of the Holy Prophet(PBUH&HP) and the son of Imam Ali (AS) and Lady Fatima (SA), supporting whom meant a certain death. These were the two options left for Hurr, just as the Holy Quran says:
 "Indeed We have guided him to the way, be he grateful or ungrateful." (76:3). 

What do we learn from Hurr?

Despite all odds, Hurr left the Army of Yazid, joined Imam Hussain (AS) and won the honor of being the first martyr of Karbala. All the glitter of the world, his power, rank, wealth and children did not stop him from joining his master Hussain(AS). 
Ashura and Karbala were not be bound by time or geographical location. Almost 14 centuries have passes by but human beings from different parts of the world, belonging to different races and religions continue to mourn for Imam Hussain(AS) and take inspiration from him and his mission.
Just as Karbala continues to inspire us, the magnanimous personality of Hurr continues to inspire and guide us. Hurr chose good over bad, truth over falsehood, hereafter over the transient world. If we claim to be followers and lovers of Imam Hussain(AS) we need to turn towards the Hussain of our time and follow the teachings of Imam Hussain(AS). Imam Hussain(AS) gave everything he had to protect and preserve the teachings of Islam and by helping Hussain(AS) in his cause, Hurr achieved this lofty position of being Imam Hussain's(AS) helper. Thus, if Hurr truly motivates us, we need to mend our ways and make ourselves capable of helping Imam Mahdi (AJ) the true inheritor of Imam Hussain's (AS) legacy.

The Hurr of Karbala teaches us that true love is incomplete without sacrifice. 

But, is the Hurr inside us ready to listen?

References

1. A Probe into the History of Ashura, Ibrahim Ayati
    

Had it not been for his coherent explanations on Aristotle’s Metaphysics, Avicenna would probably never have been able to understand it; he read Aristotle forty times, but it was just through the straightforward and comprehensive commentaries of Al Farabi that he finally realized Aristotle’s ideas on Metaphysics.

The great Muslim philosopher, logician, and cosmologist, Abu Nasr Muhammad ibn Muhammad Farabi, was born in 872 A.D. in Farab, Khurasan, to Iranian parents. He spent most of his life in Baghdad and from a very early youth started learning the teachings of Islam and the Holy Quran under the training of the best Islamic philosophers and scholars. He traveled to many countries, including Egypt and Syria. He died in 950 or 951 A.D. in Damascus, Syria.

In philosophy, he is considered to be the second in rank after Aristotle, and is called “the second teacher” and on some occasions “the second master” [1]. His wise and easy to understand explanations shed a clear light on the complex philosophy of Aristotle, to the point that many western philosophers owed their appreciation of “the first teacher”’s philosophy to Al-Farabi [2].

Moreover, he is the founder of Islamic philosophy. He genuinely believed in the existence of the first cause -God, Allah- and admitted the limits of human knowledge in understanding the nature of it [3].

 In one of his most notable works “Al-Madina Al-Fadila” (The Virtuous City) which is basically about political philosophy, he argues that the favorable form of government is the one ruled by a prophet or Imam. Accordingly, the city of Medina when it was ruled by Prophet Muhammad (PBUH) was the ideal kind of society that would ultimately guide human beings to everlasting felicity both in this world and the world that is to come.

He also criticized those philosophers who do not utilize their knowledge for the benefit of their society. He compared the philosopher's role in society with a physician’s relation to the body; the body's health is affected by the 'balance of its humors just as the city is determined by the moral habits of its people. The philosopher's duty, he says, is to establish a ‘virtuous’ society by healing the souls of people, establishing justice, and guiding them towards 'true happiness' [4].

He was also a grandmaster of music; “He is said to have created musical compositions. To this day there are melodies in Anatolian music and rags in classical North Indian music attributed to him, sung and performed by masters of these musical genres”[5]. His famous book on music, Kitab al-musiqi al-Kabir ("The Great Book of Music"), is the study of the theory of Persian music and the philosophical principles of music, its cosmic qualities, and influence.

His other well-known book is called Kitab ihsa al-ulum ("On the Introduction of Knowledge"). It consists of eight parts, each dealing with one branch of science such as linguistics, logic, mathematics, astronomy, metaphysics, Islamic jurisprudence, Islamic science of dialectic and discourse, as well as politics[6].

Finally, Al-Farabi, one of the greatest Muslim philosophers, is a universal phenomenon whose innovative and sensible ideas marked a turning point in the history of philosophy. His philosophy was easy to understand and apply to real-life which is the essence of the sharia of Islam; a religion with rules that are highly compatible with human nature and if followed would bring satisfaction as well as peace.

References:

1. Ian Richard Netton. “al-Farabi, Abu Nasr" .Islamic Philosophy from the Routledge Encyclopedia of Philosophy.
2. F.W Zimmermann, Al-Farabi 's Commentary and Short Treatise on Aristotle 's De Interpretation, Oxford, 1981.
3. Ian Richard Netton. Breaking with Athens: Alfarabi as Founder, Applications of Political Theory by Christopher A.Colmo".
4. Charles Butterworth. Ethical and Political Philosophy in Adamson, P, and Taylor, R. The Cambridge Companion to Arabic Philosophy
5. Hussein Nasr, Mehdi Aminrazavi. “An Anthology of Philosophy in Persia," Vol. 1: From Zoroaster to ‘Umar Khayyam”, I.B. 
6. Hamid Taleb Zadeh. Philosophy (Introduction to Islamic philosophy) the field of humanity, for pre-university students.