For one person who is blessed with the power of invention, many will always be found who have the capacity of applying principles.

An object is frequently not seen, from not knowing how to see it, rather than from any defect of the organ of vision.

Surely, if knowledge is valuable, it can never be good policy in a country far wealthier than Tuscany, to allow a genius like Mr. Dalton's, to be employed in the drudgery of elementary instruction.

The economy of human time is the next advantage of machinery in manufactures.

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

Some kinds of nails, such as those used for defending the soles of coarse shoes, called hobnails, require a particular form of the head, which is made by the stroke of a die.

He will also find that the high and independent spirit, which usually dwells in the breast of those who are deeply versed in scientific pursuits, is ill adapted for administrative appointments; and that even if successful, he must hear many things he disapproves, and raise no voice against them.