When in doubt, tell the truth. That maxim I did invent, but never expected it to be applied to me. I did say, "When you are in doubt," but when I am in doubt myself I use more sagacity.
Evolution is a blind giant who rolls a snowball down a hill. The ball is made of flakes-circumstances. They contribute to the mass without knowing it. They adhere without intention, and without foreseeing what is to result. When they see the result they marvel at the monster ball and wonder how the contriving of it came to be originally thought out and planned. Whereas there was no such planning, there was only a law: the ball once started, all the circumstances that happened to lie in its path would help to build it, in spite of themselves.
Agassiz does recommend authors to eat fish, because the phosphorus in it makes brains. But I cannot help you to a decision about the amount you need to eat. Perhaps a couple of whales would be enough.
Such is professional jealousy; a scientist will never show any kindness for a theory which he did not start himself. There is no feeling of brotherhood among these people. Indeed, they always resent it when I call them brother. To show how far their ungenerosity can carry them, I will state that I offered to let Prof. H--y publish my great theory as his own discovery; I even begged him to do it; I even proposed to print it myself as his theory. Instead of thanking me, he said that if I tried to fasten that theory on him he would sue me for slander.
I have achieved my seventy years in the usual way: by sticking strictly to a scheme of life which would kill anybody else... I will offer here, as a sound maxim, this: That we can't reach old age by another man's road.
Written things are not for speech; their form is literary; they are stiff, inflexible, and will not lend themselves to happy and effective delivery with the tongue-where their purpose is to merely entertain, not instruct; they have to be limbered up, broken up, colloquialized and turned into common forms of premeditated talk-otherwise they will bore the house and not entertain it.
If I had been helping the Almighty when he created man, I would have had him begin at the other end, and start human beings with old age. How much better to start old and have all the bitterness and blindness of age in the beginning!