Curiosity should be as carefully cherish'd in children, as other appetites suppress'd.

The Commonwealth of Learning is not at this time without Master-Builders, whose mighty Designs, in advancing the Sciences, will leave lasting Monuments to the Admiration of Posterity; But every one must not hope to be a Boyle, or a Sydenham; and in an Age that produces such Masters, as the Great-Huygenius, and the incomparable Mr. Newton, with some other of that Strain; 'tis Ambition enough to be employed as an Under-Labourer in clearing Ground a little, and removing some of the Rubbish, that lies in the way to Knowledge.

We should have a great fewer disputes in the world if words were taken for what they are, the signs of our ideas only, and not for things themselves.

And thus the community perpetually retains a supreme power of saving themselves from the attempts and designs of anybody, even of their legislators, whenever they shall be so foolish, or so wicked, as to lay and carry on designs against the liberties and properties of the subject.

Tis a Mistake to think this Fault [tyranny] is proper only to Monarchies; other Forms of Government are liable to it, as well as that. For where-ever the Power that is put in any hands for the Government of the People, and the Preservation of their Properties, is applied to other ends, and made use of to impoverish, harass, or subdue them to the Arbitrary and Irregular Commands of those that have it: There it presently becomes Tyranny, whether those that thus use it are one or many.

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

Don't tell me what I can't do!