Why is it that all men who are outstanding in philosophy, poetry or the arts are melancholic?
But also philosophy is not about perceptible substances they, you see, are prone to destruction.
Metaphysics involves intuitive knowledge of unprovable starting-points concepts and truth and demonstrative knowledge of what follows from them.
The life of theoretical philosophy is the best and happiest a man can lead. Few men are capable of it and then only intermittently. For the rest there is a second-best way of life, that of moral virtue and practical wisdom.
To say of what is that it is not, or of what is not that it is, is false, while to say of what is that it is, and of what is not that it is not, is true.
The final cause, then, produces motion through being loved.
A good style must have an air of novelty, at the same time concealing its art.
That in the soul which is called the mind is, before it thinks, not actually any real thing.
He overcomes a stout enemy who overcomes his own anger.
There are some jobs in which it is impossible for a man to be virtuous.
The family is the association established by nature for the supply of man’s everyday wants.
That which is common to the greatest number has the least care bestowed upon it.
Virtue makes us aim at the right end, and practical wisdom makes us take the right means.
The heart is the perfection of the whole organism. Therefore the principles of the power of perception and the souls ability to nourish itself must lie in the heart.
Not to know of what things one should demand demonstration, and of what one should not, argues want of education.
Character is revealed through action.
Only an armed people can be truly free. Only an unarmed people can ever be enslaved.
Every virtue is a mean between two extremes, each of which is a vice.
Happiness is at once the best, the noblest, and the pleasantest of things.
True happiness flows from the possession of wisdom and virtue and not from the possession of external goods.