He who worries about calamities suffers them twice over.
The wind is never for the sailor who knows not to what port he is bound.
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.
The smallest task, well done, becomes a miracle of achievement
You can never win when you wear the ugly cloak of self-pity and the sour sound of whining.
Remember that no talent, no self-denial, no brains, no character, are required to set up in the fault-finding business. Nothing external can have any power over you unless you permit it.