A man should always have these two rules in readiness. First, to do only what the reason of your ruling and legislating faculties suggest for the service of man. Second, to change your opinion whenever anyone at hand sets you right and unsettles you in an opinion, but this change of opinion should come only because you are persuaded that something is just or to the public advantage, not because it appears pleasant or increases your reputation.

Everything that happens happens as it should, and if you observe carefully, you will find this to be so.

It's normal to feel pain in your hands and feet, if you're using your feet as feet and your hands as hands. And for a human being to feel stress is normal - if he's living a normal life. And if it's normal, how can it be bad?

Nothing can come out of nothing, any more than a thing can go back to nothing.

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.

Thou sufferest justly: for thou choosest rather to become good to-morrow than to be good to-day.

A man's happiness,-to do the things proper to man.