Laughter is a bodily exercise, precious to Health

There is only one condition in which we can imagine managers not needing subordinates, and masters not needing slaves. This condition would be that each (inanimate) instrument could do its own work.

There's many a slip between the cup and the lip.

The avarice of mankind is insatiable.

Perhaps here we have a clue to the reason why royal rule used to exist formerly, namely the difficulty of finding enough men of outstanding virtue.

Democracy arose from men's thinking that if they are equal in any respect they are equal absolutely.

Doubt is the beginning of wisdom