This notion [skepticism] is more clearly understood by asking "What do I know?"

Of the opinions of philosophy I most gladly embrace those that are most solid, that is to say, most human and most our own; my opinions, in conformity with my conduct, are low and humble.

Is there anything so grave and serious as an ass?

The relish of good and evil depends in a great measure upon the opinion we have of them.

Example is a bright looking-glass, universal and for all shapes to look into.

All other knowledge is hurtful to him who has not honesty and good-nature

To distract myself from tiresome thoughts, I have only to resort to books; they easily draw my mind to themselves and away from other things.