Life is like a coin. You can spend it any way you wish, but you can only spend it once.

When one door of happiness closes, another opens; but often we look so long at the closed door that we do not see the one which has been opened for us.

- Helen Keller

Maturity doesn't come with age - the opportunity for it does.

(Rabbi Refson)

“A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.”

A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.

even if you're on the right track, you'll get run over if you just sit there.

You don't need to wait for opportunity to knock if you leave the door open for it.