A man of great common sense and good taste - meaning thereby a man without originality or moral courage.

Virtue is insufficient temptation.

The British are apt to make merits of their stupidities, and to represent their various incapacities as points of good breeding.

I like a bit of mongrel myself, whether it's a man or a dog.

Suppose the world were only one of God's jokes, would you work any the less to make it a good joke instead of a bad one?

I want to be thoroughly used up when I die, for the harder I work the more I live. I rejoice in life for its own sake.

Science becomes dangerous only when it imagines that it has reached its goal.