The optimist proclaims that we live in the best of all possible worlds, and the pessimist fears this is true. (James Branch Cabell)

Black holes are where God divided by zero. (Steven Wright)

In theory, there is no difference between theory and practice. But in practice, there is. (Yogi Berra)

The difference between ‘involvement’ and ‘commitment’ is like an eggs-and-ham breakfast: the chicken was ‘involved’ – the pig was ‘committed’. (unknown)