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.

There is no hope unmingled with fear, and no fear unmingled with hope.

Nature has no goal in view, and final causes are only human imaginings.

Whatever increases, decreases, limits or extends the body's power of action, increases decreases, limits, or extends the mind's power of action. And whatever increases, decreases, limits, or extends the mind's power of action, also increases, decreases, limits, or extends the body's power of action.

The greater emotion with which we conceive a loved object to be affected toward us, the greater will be our complacency.

Let unswerving integrity be your watchword.

What Paul says about Peter tells us more about Paul than about Peter.