Constant development is the law of life, and a man who always tries to maintain his dogmas in order to appear consistent drives himself into a false position.
Tell the truth boldly, whether it hurts or not. Never pander to weakness. If truth is too much for intelligent people and sweeps them away, let them go; the sooner the better.
We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good.
Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great.
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.