He alone is free who lives with free consent under the entire guidance of reason.

The more clearly you understand yourself and your emotions, the more you become a lover of what is.

We strive to further the occurrence of whatever we imagine will lead to Joy, and to avert or destroy what we imagine is contrary to it, or will lead to Sadness.

Everyone has as much right as he has might.

Men who are ruled by reason desire nothing for themselves which they would not wish for all mankind.

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.

Except God no substance can be granted or conceived. .. Everything, I say, is in God, and all things which are made, are made by the laws of the infinite nature of God, and necessarily follows from the necessity of his essence.