It is easy in the world to live after the world's opinion; it is easy in solitude to live after our own; but the great man is he who in the midst of the crowd keeps with perfect sweetness the independence of solitude.

If i have lost confidence in myself, I have the universe against me.

So much of our time is preparation, so much is routine, and so much retrospect, that the path of each man's genius contracts itself to a very few hours.

Ralph Waldo Emerson

Knowing is not enough