All art is quite useless.
Perhaps the most valuable result of all education is the ability to make yourself do the thing you have to do, when it ought to be done, whether you like it or not.
I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man.
Life is the will to power; our natural desire to dominate and reshape the world to fit our own preferences and assert our personal strength to the fullest degree.
The fox has many tricks. The hedgehog has but one. But that is the best of all.
Guard well your spare moments. They are like uncut diamonds. Discard them and their value will never be known. Improve them and they will become the brightest gems in a useful life.
While I thought that I was learning how to live, I have been learning how to die.
The man who views the world at fifty the same as he did at twenty has wasted thirty years of his life.