Music gives wings to the mind and flight to the imagination.

The science [geometry] is pursued for the sake of the knowledge of what eternally exists, and not of what comes for a moment into existence, and then perishes.

The most virtuous are those who content themselves with being virtuous without seeking to appear so.

No trace of slavery ought to mix with the studies of the freeborn man. No study, pursued under compulsion, remains rooted in the memory.

There must always remain something that is antagonistic to good.

Not every love, but only that which has a noble purpose, is noble and worthy of praise.

Physical excellence does not of itself produce a good mind and character: on the other hand, excellence of mind and character will make the best of the physique it is given.