Depend not on fortune, but on conduct.
The secret of greatness is simple: do better work than any other man in your field - and keep on doing it.
I got up the third step and reached for the fourth, but it wasn't there.
Nothing changes your opinion of a friend so surely as success - yours or his.
Nothing is so awesomely unfamiliar as the familiar that discloses itself at the end of a journey.
If one sticks too rigidly to one's principles, one would hardly see anybody.
Art is either plagiarism or revolution.