The chief distinction in the intellectual powers of the two sexes is shown by mans attaining to a higher eminence, in whatever he takes up, than the woman. Whether deep thought, reason, or imagination or merely the use of the senses and hands.....We may also infer.....The average mental power in man must be above that of woman.

It has been a bitter mortification for me to digest the conclusion that the "race is for the strong" and that I shall probably do little more but be content to admire the strides others made in science.

The more one thinks, the more one feels the hopeless immensity of man's ignorance.

Man is developed from an ovule, about 125th of an inch in diameter, which differs in no respect from the ovules of other animals.

Delight itself, however, is a weak term to express the feelings of a naturalist.

... not one living species will transmit its unaltered likeness to a distant futurity.

Nature will tell you a direct lie if she can.