In university they don't tell you that the greater part of the law is learning to tolerate fools.
All sanity depends on this: that it should be a delight to feel heat strike the skin, a delight to stand upright, knowing the bones are moving easily under the flesh.
Laughter is by definition healthy.
That is what learning is. You suddenly understand something you've understood all your life, but in a new way.
The great secret that all old people share is that you really haven't changed in 70 or 80 years. Your body changes, but you don't change at all.