Freedom is nothing but a chance to be better.

Integrity has no need of rules.

Always go too far, because that is where you will find the truth.

The life of the individual has meaning o­nly insofar as it aids in making the life of every living thing - and living being - nobler and more beautiful.

Our prime purpose in this life is to help others. And if you can't help them, at least don't hurt them.

I have endeavored to show that there is no real service of humanity in the profession [of medicine] and that it is injurious to mankind.

Live as if you were to die tomorrow. Learn as if you were to live forever. 

First they ignore you, then they laugh at you, then they fight you, then you win. 

Strength does not come from physical capacity. It comes from an indomitable will.

Just when the caterpillar thought the world was over, it became a butterfly.