Nothing can bring you peace but yourself. Nothing can bring you peace but the triumph of principles.
Ralph Waldo Emerson (1803-1882)
Philosopher and writer

Man is made by his belief. As he believes, so he is.
Bhagavad-Gita

How can you come to know yourself? Never by thinking; always by doing. Try to do your duty, and you'll know right away what you amount to. And what is your duty? Whatever the day calls for.
Johann Wolfgang Von Goethe (1749-1832)
Poet and philosopher