The best way to avoid envy is to deserve the success you get.

The soul never thinks without a picture.

The virtue of a faculty is related to the special function which that faculty performs. Now there are three elements in the soul which control action and the attainment of truth: namely, Sensation, Intellect, and Desire. Of these, Sensation never originates action, as is shown by the fact that animals have sensation but are not capable of action.

Man, as an originator of action, is a union of desire and intellect.

I have gained this from philosophy: that I do without being commanded what others do only from fear of the law.

But nothing is yet clear on the subject of the intellect and the contemplative faculty. However, it seems to be another kind of soul, and this alone admits of being separated, as that which is eternal from that which is perishable, while it is clear from these remarks that the other parts of the soul are not separable, as some assert them to be, though it is obvious that they are conceptually distinct.

Man is the metre of all things, the hand is the instrument of instruments, and the mind is the form of forms.