Robert A. Heinlein on youth

Women and cats will do as they please, and men and dogs should relax and get used to the idea.

The most ridiculous concept ever perpetrated by Homo Sapiens is that the Lord God of Creation, Shaper and Ruler of the Universes, wants the sacharrine adoration of his creations, that he can be persuaded by their prayers, and becomes petulant if he does not recieve this flattery. Yet this ridiculous notion, without one real shred of evidence to bolster it, has gone on to found one of the oldest, largest and least productive industries in history.

Sex without love is merely healthy exercise.

When I was a boy of 14, my father was so ignorant I could hardly stand to have the old man around.
But when I got to be 21, I was astonished at how much the old man had learned in seven years.

George Washington, as a boy, was ignorant of the commonest accomplishments of youth. He could not even lie.

Mark Twain1835–1910“Brief Biographical Sketch of George Washington”, The Celebrated Jumping Frog of Calaveras County, and Other Sketches (1867), ed. John Paul

When I was younger I could remember anything, whether it happened or not.

Mark Twain1835–1910Autobiography of Mark Twain, Mark Twain Project edition, Volume 1 (2010), p. 210