When you undervalue what you do, the world will undervalue who you are
If you place your head in a lion's mouth, then you cannot complain one day if he happens to bite it off.
If we do not lay out ourselves in the service of mankind whom should we serve?
Let him who would move the world first move himself.
Today you are you! That is truer than true! There is no one alive who is you-er than you!
To be wronged is nothing unless you continue to remember it.
I have no desire to make windows into mens souls
A mistake is always forgivable, rarely excusable and always unacceptable.
Yesterday is but today's memory and tomorrow is today's dream.
How often I found where I should be going only by setting out for somewhere else.
It takes a lot of courage to show your dreams to someone else.
No man has any natural authority over his fellow men.
Science has not yet taught us if madness is or is not the sublimity of the intelligence.
Turn your wounds into wisdom.
But the fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses. They laughed at Columbus, they laughed at Fulton, they laughed at the Wright brothers. But they also laughed at Bozo the Clown.
Man is not the creature of circumstances, Circumstances are the creatures of men.
Those who see the invisible can do the impossible.
Science may set limits to knowledge, but should not set limits to imagination.
If I speak of myself in different ways, that is because I look at myself in different ways.
A friend to all is a friend to none
The greatest deception men suffer is from their own opinions.