One and the same thing can at the same time be good, bad, and indifferent, e.g., music is good to the melancholy, bad to those who mourn, and neither good nor bad to the deaf.

Measure, time and number are nothing but modes of thought or rather of imagination.

Nature offers nothing that can be called this man's rather than another's; but under nature everything belongs to all.

In the mind there is no absolute or free will.

None are more taken in by flattery than the proud, who wish to be the first and are not.

True knowledge of good and evil as we possess is merely abstract or general, and the judgment which we pass on the order of things and the connection of causes, with a view to determining what is good or bad for us in the present, is rather imaginary than real.

Simply from the fact that we have regarded a thing with the emotion of pleasure or pain, though that thing be not the efficient cause of the emotion, we can either love or hate it.