Not greeting people isn't enough. One also doesn't greet people one doesn't know.
The world is a prison in which solitary confinement is preferable.
A weak man has doubts before a decision; a strong man has them afterwards.
You'd be surprised how hard it can often be to translate an action into an idea.
Journalist: a person without any ideas but with an ability to express them; a writer whose skill is improved by a deadline: the more time he has, the worse he writes.
Artists have a right to be modest and a duty to be vain.