Too much is just enough.

The radical of one century is the conservative of the next. The radical invents the views. When he has worn them out, the conservative adopt.

If you tell the truth, you don't have to remember anything.

Well enough for old folks to rise early, because they have done so many mean things all their lives they can't sleep anyhow.

Of the delights of this world man cares most for sexual intercourse.

In America, we hurry-which is well; but when the day's work is done, we go on thinking of losses and gains, we plan for the morrow, we even carry our business cares to bed with us...we burn up our energies with these excitements, and either die early or drop into a lean and mean old age at a time of life which they call a man's prime in Europe...What a robust people, what a nation of thinkers we might be, if we would only lay ourselves on the shelf occasionally and renew our edges!

Age is an issue of mind over matter. If you don't mind, it doesn't matter.