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.

No one would choose a friendless existence on condition of having all the other things in the world.

Actions determine what kind of characteristics are developed.

Whether we call it sacrifice, or poetry, or adventure, it is always the same voice that calls.

The true nature of anything is what it becomes at its highest.

All persons ought to endeavor to follow what is right, and not what is established.

For even they who compose treatises of medicine or natural philosophy in verse are denominated Poets: yet Homer and Empedocles have nothing in common except their metre; the former, therefore, justly merits the name of the Poet; while the other should rather be called a Physiologist than a Poet.