Events do not just happen, but arrive by appointment.
Never look for your work in one place and your progress in another.
Act your part with honor.
Common and vulgar people ascribe all ills that they feel to others; people of little wisdom ascribe to themselves; people of much wisdom, to no one.
No man is able to make progress when he is wavering between opposite things.
Men are not worried by things, but by their ideas about things. When we meet with difficulties, become anxious or troubled, let us not blame others, but rather ourselves. That is: our ideas about things.