It is not reason which is the guide of life, but custom.

It seems then, say I, that you leave politics entirely out of the question, and never suppose, that a wise magistrate can justly be jealous of certain tenets of philosophy, such as those of Epicurus, which, denying a divine existence, and consequently a providence and a future state, seem to loosen, in a great measure, the ties of morality, and may be supposed, for that reason, pernicious to the peace of civil society.

All knowledge resolves itself into probability. ... In every judgment, which we can form concerning probability, as well as concerning knowledge, we ought always to correct the first judgment deriv'd from the nature of the object, by another judgment, deriv'd from the nature of the understanding.

We may well ask, What causes induce us to believe in the existence of body? but 'tis vain to ask. Whether there be body or not? That is a point which we must take for granted in all our reasonings.

The great charm of poetry consists in lively pictures of the sublime passions, magnanimity, courage, disdain of fortune; or thoseof the tender affections, love and friendship; which warm the heart, and diffuse over it similar sentiments and emotions.

Virtue, like wholesome food, is better than poisons, however corrected.

Beauty in things exists in the mind which contemplates them.