If God is omnipotent, omniscient and wholly good, whence evil? If God wills to prevent evil but cannot, then He is not omnipotent. If He can prevent evil but does not, then he is not good. In either case he is not God.

The heart of man is made to reconcile the most glaring contradictions.

But I would still reply, that the knavery and folly of men are such common phenomena, that I should rather believe the most extraordinary events to arise from their concurrence, than admit of so signal a violation of the laws of nature

The unhappy of all men is he who believes himself to be so.

From causes which appear similar, we expect similar effects. This is the sum total of all our experimental conclusions.

A man who has cured himself of all ridiculous prepossessions, and is fully, sincerely, and steadily convinced, from experience as well as philosophy, that the difference of fortune makes less difference in happiness than is vulgarly imagined; such a one does not measure out degrees of esteem according to the rent-rolls of his acquaintance. ... his internal sentiments are more regulated by the personal characters of men, than by the accidental and capricious favors of fortune.

In this sullen apathy neither true wisdom nor true happiness can be found.