History can be formed from permanent monuments and records; but lives can only be written from personal knowledge, which is growing every day less, and in a short time is lost forever.

The chief art of learning, as Locke has observed, is to attempt but little at a time. The widest excursions of the mind are made by short flights frequently repeated; the most lofty fabrics of science are formed by the continued accumulation of single propositions.

It is no matter what you teach them first, any more than what leg you shall put into your breeches first. You may stand disputing which is best to put in first, but in the mean time your breech is bare. Sir, while you are considering which of two things you should teach your child first, another boy has learned them both.

Among the innumerable mortifications which waylay human arrogance on every side may well be reckoned our ignorance of the most common objects and effects, a defect of which we become more sensible by every attempt to supply it. Vulgar and inactive minds confound familiarity with knowledge and conceive themselves informed of the whole nature of things when they are shown their form or told their use; but the speculatist, who is not content with superficial views, harasses himself with fruitless curiosity, and still, as he inquires more, perceives only that he knows less.

It is the condition of our present state to see more than we can attain; the exactest vigilance and caution can never maintain a single day of unmingled innocence.

Peevishness may be considered the canker of life, that destroys its vigor and checks its improvement; that creeps on with hourly depredations, and taints and vitiates what it cannot consume.

The size of a man's understanding might always be justly measured by his mirth.