Human experience, which is constantly contradicting theory, is the great test of truth. A system, built upon the discoveries of a great many minds, is always of more strength, than what is produced by the mere workings of any one mind, which, of itself, can do very little. There is not so poor a book in the world that would not be a prodigious effort were it wrought out entirely by a single mind, without the aid of prior investigators.

Whatever enlarges hope will also exalt courage.

The whole power of cunning is privative; to say nothing, and to do nothing , is the utmost of its reach. Yet men, thus narrow by nature and mean by art, are sometimes able to rise by the miscarriages of bravery and the openness of integrity, and, watching failures and snatching opportunities, obtain advantages which belong to higher characters.

Probably no one will ever know whether it is better to wear a nightcap or not.

We are unreasonably desirous to separate the goods of life from those evils which Providence has connected with them, and to catch advantages without paying the price at which they are offered to us. Every man wishes to be rich, but very few have the powers necessary to raise a sudden fortune, either by new discoveries, or by superiority of skill in any necessary employment; and among lower understandings many want the firmness and industry requisite to regular gain and gradual acquisitions.

He that applauds him who does not deserve praise, is endeavoring to deceive the public; he that hisses in malice or sport, is an oppressor and a robber.

As every writer has his use, every writer ought to have his patrons; and since no man, however high he may now stand, can be certain that he shall not be soon thrown down from his elevation by criticism or caprice, the common interest of learning requires that her sons should cease from intestine hostilities, and, instead of sacrificing each other to malice and contempt, endeavour to avert persecution from the meanest of their fraternity.