If pleasure was not followed by pain, who would forbear it?

Smoking is a shocking thing - blowing smoke out of our mouths into other people's mouths, eyes, and noses, and having the same thing done to us.

Criticism, as it was first instituted by Aristotle, was meant as a standard of judging well.

Every man is rich or poor according to the proportion between his desires and his enjoyments; any enlargement of wishes is therefore equally destructive to happiness with the diminution of possession, and he that teaches another to long for what he never shall obtain is no less an enemy to his quiet than if he had robbed him of part of his patrimony

Such is the emptiness of human enjoyment that we are always impatient of the present. Attainment is followed by neglect, and possession by disgust.

Such is the constitution of man that labour may be styled its own reward; nor will any external incitements be requisite, if it be considered how much happiness is gained, and how much misery escaped, by frequent and violent agitation of the body.

Language is the dress of thought.