We must not let go manifest truths because we cannot answer all questions about them.

Prudence is a necessary ingredient in all the virtues, without which they degenerate into folly and excess.

Envy is of all others the most ungratifying and disconsolate passion. There is power for ambition, pleasure for luxury, and pelf even for covetousness; but envy gets no reward but vexation.

Vanity is a strong temptation to lying; it makes people magnify their merit, over flourish their family, and tell strange stories of their interest and acquaintance.

Envy is an ill-natured vice, and is made up of meanness and malice. It wishes the force of goodness to be strained, and the measure of happiness abated. It laments over prosperity, and sickens at the sight of health. It oftentimes wants spirit as well as good nature.

The abuse of a thing is no argument against the use of it.

There are few things reason can discover with so much certainty and ease as its own insufficiency.