It is the mark of an educated mind to rest satisfied with the degree of precision which the nature of the subject admits and not to seek exactness where only an approximation is possible.

Greatness of Soul seems therefore to be as it were a crowning ornament of the virtues; it enhances their greatness, and it cannot exist without them. Hence it is hard to be truly great-souled, for greatness of soul is impossible without moral nobility.

We give up leisure in order that we may have leisure, just as we go to war in order that we may have peace.

It is clear that there is some difference between ends: some ends are energeia [energy], while others are products which are additional to the energeia.

Fortune favours the bold.

The fool tells me his reason; the wise man persuades me with my own.

All men desire by nature to know.