The errors which arise from the absence of facts are far more numerous and more durable than those which result from unsound reasoning respecting true data.

Telegraphs are machines for conveying information over extensive lines with great rapidity.

There are few circumstances which so strongly distinguish the philosopher, as the calmness with which he can reply to criticisms he may think undeservedly severe.

Another mode of accumulating power arises from lifting a weight and then allowing it to fall.

If we look at the fact, we shall find that the great inventions of the age are not, with us at least, always produced in universities.

I wish to God these calculations had been executed by steam.

A tool is usually more simple than a machine; it is generally used with the hand, whilst a machine is frequently moved by animal or steam power.