Memory is the power to revive again in our minds those ideas which after imprinting have disappeared, or have been laid aside out of sight.

One unerring mark of the love of truth is not entertaining any proposition with greater assurance than the proofs it is built upon will warrant.

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

There cannot any one moral rule be proposed whereof a man may not justly demand a reason.

Thus the law of nature stands as an eternal rule to all men, legislators as well as others. The rules that they make for other mens actions, must, as well as their own and other mens actions, be conformable to the law of nature, i.e. to the will of God, of which that is a declaration, and the fundamental law of nature being the preservation of mankind, no human sanction can be good, or valid against it.

Where all is but dream, reasoning and arguments are of no use, truth and knowledge nothing.

Logic is the anatomy of thought.