For suppose that every tool we had could perform its task, either at our bidding or itself perceiving the need, and if-like the statues made by Dædalus or the tripods of Hephæstus, of which the poet says that "self-moved they enter the assembly of the gods" - shuttles in a loom could fly to and fro and a plectrum play a lyre all self-moved, then master-craftsmen would have no need of servants nor masters of slaves.

Well begun is half done.

A constitution is the arrangement of magistracies in a state.

Plato is dear to me, but dearer still is truth.

Happiness is the meaning and the purpose of life, the whole aim and end of human existence.

You will never do anything in this world without courage. It is the greatest quality of the mind next to honor.

The mathematical sciences particularly exhibit order symmetry and limitations; and these are the greatest forms of the beautiful.