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.

In poverty and other misfortunes of life, true friends are a sure refuge. The young they keep out of mischief; to the old they are a comfort and aid in their weakness, and those in the prime of life they incite to noble deeds.

The only stable principle of government is equality according to proportion, and for every man to enjoy his own.

If everything when it occupies an equal space is at rest, and if that which is in locomotion is always occupying such a space at any moment, the flying arrow is therefore motionless.

Learning is not child's play; we cannot learn without pain.

The greatest injustices proceed from those who pursue excess, not by those who are driven by necessity.

Good laws, if they are not obeyed, do not constitute good government.