When you have been compelled by circumstances to be disturbed in any manner, quickly return to yourself, and do not continue out of tune longer than the compulsion lasts. You will have increasing control over your own harmony by continually returning to it.

A rational nature admits of nothing but what is serviceable to the rest of mankind.

Always follow these two rules: first, act only on what your reasoning mind proposes for the good of humanity, and second, change your opinion if someone shows you it's wrong. This change of mind must proceed only from the conviction that it's both correct and for the common good, but not because it will give you pleasure and make you popular.

Never let the future disturb you. You will meet it, if you have to, with the same weapons of reason which today arm you against the present.

Do what you will. Even if you tear yourself apart, most people will continue doing the same things.

Accustom yourself not to be disregarding of what someone else has to say: as far as possible enter into the mind of the speaker.

If the gods care not for me and for my children, There is a reason for it.