Nothing comes to pass in nature, which can be set down to a flaw therein; for nature is always the same, and everywhere one and the same in her efficacy and power of action: that is, nature's laws and ordinances, whereby all things come to pass and change from one form to another, are everywhere and always the same; so that there should be one and the same method of understanding the nature of all things whatsoever, namely, through nature's universal laws and rules.

I do not presume that I have found the best philosophy, I know that I understand the true philosophy.

Everyone endeavors as much as possible to make others love what he loves, and to hate what he hates... This effort to make everyone approve what we love or hate is in truth ambition, and so we see that each person by nature desires that other persons should live according to his way of thinking.

In the state of nature, wrong-doing is impossible ; or, if anyone does wrong, it is to himself, not to another.

Nature is satisfied with little; and if she is, I am also.

Let unswerving integrity be your watchword.

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