“Happiness. One day. Ten thousand years ago.”

“One becomes a beginner after one thousand days of training and an expert after ten thousand days of practice.”

“One world is aware and by far the largest to me, and that is myself, / And whether I come to my own to-day or in ten thousand or ten / million years, / I can cheerfully take it now, or with equal cheerfulness I can wait.”

“Eternity ended ten years ago.”

“Because you have no memory for things that happened ten or twenty years ago, you're still mouthing the same nonsense as two thousand years ago. Worse, you cling with might and main to such absurdities as 'race,' 'class,' 'nation,' and the obligation to observe a religion and repress your love.”

“The near side of a galaxy is tens of thousands of light-years closer to us than the far side; thus we see the front as it was tens of thousands of years before the back. But typical events in galactic dynamics occupy tens of millions of years, so the error in thinking of an image of a galaxy as frozen in one moment of time is small.”