He that is a friend to himself, know; he is a friend to all.

If I speak of myself in different ways, that is because I look at myself in different ways.

The bitterness of the potion, and the abhorrence of the patient are necessary circumstances to the operation. It must be something to trouble and disturb the stomach that must purge and cure it.

Have you been able to think out and manage your own life? You have done the greatest task of all.... All other things, ruling, hoarding, building, are only little appendages and props, at most.

There is not much less vexation in the government of a private family than in the managing of an entire state.

Amongst all other vices there is none I hate more than cruelty, both by nature and judgment, as the extremest of all vices.

It should be noted that children at play are not playing about; their games should be seen as their most serious-minded activity.