Everybody thinks himself so well supplied with common sense that even those most difficult to please. . . never desire more of it than they already have.

In God there is an infinitude of things which I cannot comprehend, nor possibly even reach in any way by thought; for it is the nature of the infinite that my nature, which is finite and limited, should not comprehend it.

The greatest minds are capable of the greatest vices as well as of the greatest virtues.

Travelling is almost like talking with those of other centuries.

Even those who have the weakest souls could acquire absolute mastery over all their passions if we employed sufficient ingenuity in training and guiding them.

For each of us there is a set limit to our intellectual powers which we cannot pass.

If I simply refrain from making a judgment in cases where I do not perceive the truth with sufficient clarity and distinctness, then it is clear that I am behaving correctly and avoiding error.