For truth itself does not have the privilege to be employed at any time and in every way; its use, noble as it is, has its circumscriptions and limits.

Wonder is the foundation of all philosophy, inquiry the progress, ignorance the end.

There is no more expensive thing than a free gift.

We must reserve a back shop all our own entirely free, in which to establish our real liberty and our principal retreat and solitude.

Learning must not only lodge with us: we must marry her.

Every abridgement of a good book is a fool abridged.

Tortures are a dangerous invention, and seem to be a test of endurance rather than of truth.