To Be Adult Is To Be Alone.

The Books One Has Written In The Past Have Two Surprises In Store: One Couldn't Write Them Again, And Wouldn't Want To.

What Makes Our Opponents Useful Is That They Allow Us To Believe That Without Them We Would Be Able To Realize Our Goals.

In Our Ideals We Unwittingly Reveal Our Vices.

When I Was Young I Pitied The Old. Now Old, It Is The Young I Pity.

What Scientist Would Not Long To Go On Living, If Only To See How The Little Truths He Has Brought To Light Will Grow Up?