Science already contained all that was necessary, if you just brought it out.

There is a great difference between a good physician and a bad one; yet very little between a good one and none at all.

Give a man secure possession of a bleak rock, and he will turn it into a garden; give him nine years' lease of a garden, and he will convert it into a desert.

The purpose creates the machine.

The tendency of philosophers who know nothing of machinery is to talk of man as a mere mechanism, intending by this to imply that he is without purpose. This shows a lack of understanding of machines as well as of man.

Everyone but an idiot knows that the lower classes must be kept poor, or they will never be industrious.

The magic of property turns sand to gold.