You have to set somebody free for them to return

Sensible motivation is always effective.

Music washes away the dust of every day life.

A model should be as simple as it can be but no simpler

I think it's a false trade-off to say quality time versus quantity - you have to have both.

Nowhere else than upon the sea do the days, weeks, and months fall away quicker into the past. They seem to be left astern as easily as the light air-bubbles in the swirls of the ship's wake.

If you are required to kill someone today, on the promise of a political leader that someone else shall live in peace tomorrow, believe me, you are not only a double murderer, you are a suicide, too.

If I cannot smoke in heaven, then I shall not go.

What I hate is when you're wearing something and you feel it on your body. I hate that.

Defend me, therefore, common sense, say From reveries so airy, from the toil Of dropping buckets into empty wells, And growing old in drawing nothing up.

If it were not for the great variability among individuals, medicine might as well be a science, not an art.