The duller eye may often see a thing sooner than the keener.

Nothing very new. By taking good care of yourselves you are of service to me and my family as well as yourselves, no matter what you do, even if you don't think so at present. But if you neglect yourselves and are unwilling to live, as though following tracks, in accordance with what we now say and have said in the past too, then no matter how much or how seriously you agree with me at present you will accomplish next to nothing.

What a lot of things I don't need.

If the whole world depends on today's youth, I can't see the world lasting another 100 years.

Understanding a question is half an answer.

To fear death, gentlemen, is no other than to think oneself wise when one is not, to think one knows what one does not know.

Wisdom is knowing what you don't know.