Misfortune shows those who are not really friends.
- Aristotle, 384 BC-322 BC
You must give some time to your fellow men. Even if it's a little thing, do something for others - something for which you get no pay but the privilege of doing it.
- Albert Schweitzer, 1875-1965
In the absence of clearly-defined goals, we become strangely loyal to performing daily trivia until ultimately we become enslaved by it.
- Robert Heinlein, 1907-1988
Source: selfgrowth.com