In the mind there is no absolute or free will; but the mind is determined to wish this or that by a cause, which has also been determined by another cause, and this last by another cause, and so on to infinity.

All happiness or unhappiness solely depends upon the quality of the object to which we are attached by love.

the ultimate aim of government is not to rule, or restrain by fear, nor to exact obedience, but to free every man from fear that he may live in all possible security... In fact the true aim of government is liberty.

Whatsoever is contrary to nature is contrary to reason, and whatsoever is contrary to reason is absurd.

...The body is affected by the image of the thing, in the same way as if the thing were actually present.

I would warn you that I do not attribute to nature either beauty or deformity, order or confusion. Only in relation to our imagination can things be called beautiful or ugly, well-ordered or confused.

But if men would give heed to the nature of substance they would doubt less concerning the Proposition that Existence appertains to the nature of substance: rather they would reckon it an axiom above all others, and hold it among common opinions. For then by substance they would understand that which is in itself, and through itself is conceived, or rather that whose knowledge does not depend on the knowledge of any other thing.