Blushing is the most peculiar and most human of all expressions.

Better to accept whatever happens.

There are lessons to be learned from a stupid man.

To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact.

We are optimists until we are not.

we are always slow in admitting any great change of which we do not see the intermediate steps.

The moral faculties are generally and justly esteemed as of higher value than the intellectual powers.

Even people who aren’t geniuses can outthink the rest of mankind if they develop certain thinking habits.

I have tried lately to read Shakespeare and found it so intolerably dull that it nauseated me.

Free will is to mind what chance is to matter.

Such simple instincts as bees making a beehive could be sufficient to overthrow my whole theory.

Man is descended from a hairy, tailed quadruped, probably arboreal in its habits.

If the misery of the poor is caused not by the laws of nature, but by our institutions, great is our sin.

I am dying by inches, from not having anybody to talk to about insects.

A man's friendships are one of the best measures of his worth.

An agnostic would be the more correct description of my state of mind.

Much love many trials, but what an utter desert is a life without love.

It's not the strongest, but the most adaptable that survive.

The highest possible stage in moral culture is when we recognize that we ought to control our thoughts.