All the objects pursued by the multitude not only bring no remedy that tends to preserve our being, but even act as hinderances, causing the death not seldom of those who possess them, and always of those who are possessed by them.

The things which ... are esteemed as the greatest good of all ... can be reduced to these three headings, to wit : Riches, Fame, and Pleasure. With these three the mind is so engrossed that it cannot scarcely think of any other good.

I call him free who is led solely by reason.

Many errors, of a truth, consist merely in the application of the wrong names of things.

To comprehend an idea, a person must simultaneously accept it as true. Conscious analysis - which, depending on the idea, may occur almost immediately or with considerable effort - allows the mind to reject what it intially accepted as fact.

The terms good and bad indicate no positive quality in things regarded in themselves, but are merely modes of thinking or notions, which we form from the comparison of things one with another. Thus one and the same thing can be at the same time good, bad, and indifferent. For instance, music is good for him that is melancholy, bad for him that mourns; for him that is deaf; it is neither good nor bad.

Everything great is just as difficult to realize as it is rare to find.