Man armed with science is like a baby with a box of matches.

In fact, words are well adapted for description and the arousing of emotion, but for many kinds of precise thought other symbols are much better.

An attempt to study the evolution of living organisms without reference to cytology would be as futile as an account of stellar evolution which ignored spectroscopy.

Money can buy a fine dog but it is kindness that makes him wag his tail.

Would I lay down my life to save my brother? No, but I would to save two brothers or eight cousins.

There are 400,000 species of beetles on this planet, but only 8,000 species of mammals.

I have never yet met a healthy person who worried very much about his health, or a really good person who worried much about his own soul.