Good breeding consists of concealing how much we think of ourselves and how little we think of the other person.
Mark Twain (1835 - 1910), Notebooks (1935)
There are two ways to slide easily through life; to believe everything or to doubt everything. Both ways save us from thinking.
Alfred Korzybski (1879 - 1950)
I think computer viruses should count as life. I think it says something about human nature that the only form of life we have created so far is purely destructive. We've created life in our own image.
Stephen Hawking (1942 - )
Books have the same enemies as people: fire, humidity, animals, weather, and their own content.
Paul Valery (1871 - 1945)