Let not men think there is no truth, but in the sciences that they study, or the books that they read.

No man's knowledge here can go beyond his experience.

With books we stand on the shoulders of giants.

The greatest part cannot know, and therefore they must believe.

A young man before he leaves the shelter of his father's house, and the guard of a tutor, should be fortify'd with resolution, and made acquainted with men, to secure his virtues, lest he should be led into some ruinous course, or fatal precipice, before he is sufficiently acquainted with the dangers of conversation, and his steadiness enough not to yield to every temptation.

Power to do good is the true and lawful act of aspiring; for good thoughts (though God accept them), yet towards men are little better than good dreams, except they be put in act; and that cannot be without power and place, as the vantage and commanding ground.

Long discourses, and philosophical readings, at best, amaze and confound, but do not instruct children. When I say, therefore, that they must be treated as rational creatures, I mean that you must make them sensible, by the mildness of your carriage, and in the composure even in the correction of them, that what you do is reasonable in you, and useful and necessary for them; and that it is not out of caprichio, passion or fancy, that you command or forbid them any thing.