Seize the day, put no trust in the morrow!

It's hard to drive at the limit, but it's harder to know where the limits are.

It's not so hard to lift yourself by your bootstraps once you're off the ground.

Everybody likes a kidder, but nobody lends him money.

How can you prove whether at this moment we are sleeping, and all our thoughts are a dream; or whether we are awake, and talking to one another in the waking state?

If there is no God, who pops up the next Kleenex?

The possession of a book becomes a substitute for reading it.

Well, you know, no matter where you go, there you are.