He who is not aware of his ignorance will be only misled by his knowledge.

Curiosity is as much the parent of attention, as attention is of memory.

To be always thinking about your manners is not the way to make them good; the very perfection of manners is not to think about yourself.

It is folly to expect men to do all that they may reasonably be expected to do.

It is worth noticing that those who assume an imposing demeanor and seek to pass themselves off for something beyond what they are, are not unfrequently as much underrated by some as overrated by others.

Habits are formed, not at one stroke, but gradually and insensibly; so that, unless vigilant care be employed, a great change may come over the character without our being conscious of any.

A man will never change his mind if he have no mind to change.