A machine is a great moral educator. If a horse or a donkey won’t go, men lose their tempers and beat it; if a machine won’t go, there is no use beating it. You have to think and try till you find what is wrong. That is real education.

Be careful in dealing with a man who cares nothing for comfort or promotion, but is simply determined to do what he believes to be right. He is a dangerous uncomfortable enemy, because his body, which you can always conquer, gives you little purchase upon his soul.

The life and liberty and property and happiness of the common man throughout the world are at the absolute mercy of a few persons whom he has never seen, involved in complicated quarrels that he has never heard of.

Where words can be translated into equivalent words, the style of an original can be closely followed; but no translation which aims at being written in normal English can reproduce the style of Aristotle.

The fashions of the ages vary in this direction and that, but they vary for the most part from a central road which was struck out by the imagination of Greece.

Sometimes Aristotle analyses his terms, but very often he takes them for granted; and in the latter case, I think, he is sometimes deceived by them.

The fact is that much misunderstanding is often caused by our modern attempts to limit too strictly the meaning of a Greek word.