Shake off your blunders. How will you know your limits without an occasional failure? Never quit. Your turn will come.
If I must be a slave to habit let me be a slave to good habits.
You can't conquer reality by running away from it.
Each misfortune you encounter will carry in it the seed of tomorrow's good luck.
Realize that true happiness lies within you. Waste no time and effort searching for peace and contentment and joy in the world outside.
Wealth, my son, should never be your goal in life. Your words are eloquent but they are mere words. True wealth is of the heart, not of the purse.