Then South African President Nelson Mandela smiles during a specially convened Harvard University ceremony honoring him in this September 18, 1998. (Reuters picture)
Mandela Day 2014 takes place on 18 July on Nelson Mandela's birthday.

Nations around the world are set to join South Africa on 18 July in its commemoration of Nelson Mandela International Day.

On the occasion, IBTimes UK has compliled top 15 quotes of Mandela, who was often affectionately referred to by the tribal name Madiba.

  • Real leaders must be ready to sacrifice all for the freedom of their people.
  • Do not judge me by my successes, judge me by how many times I fell down and got back up again.
  • Difficulties break some men but make others. No axe is sharp enough to cut the soul of a sinner who keeps on trying, one armed with the hope that he will rise even in the end.
  • If I had my time over I would do the same again. So would any man who dares call himself a man.
  • Education is the most powerful weapon which you can use to change the world.
  • I learned that courage was not the absence of fear, but the triumph over it. The brave man is not he who does not feel afraid, but he who conquers that fear.
  • Resentment is like drinking poison and then hoping it will kill your enemies.
  • I hate race discrimination most intensely and in all its manifestations. I have fought it all during my life; I fight it now, and will do so until the end of my days.
  • A good head and a good heart are always a formidable combination.
  • Everyone can rise above their circumstances and achieve success if they are dedicated to and passionate about what they do.
  • A fundamental concern for others in our individual and community lives would go a long way in making the world the better place we so passionately dreamt of.
  • I like friends who have independent minds because they tend to make you see problems from all angles.
  • It always seems impossible until it's done.
  • Lead from the back — and let others believe they are in front.
  • For to be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others.