No evil is honorable: but death is honorable; therefore death is not evil.

When men are enlightened enough to follow their natural instincts, they will have no need of law-courts or police, will have no temples and no public worship, and use no money.

Where you find the laws most numerous, there you will find also the greatest injustice. Virtue is its own reward.

All the good are friends of one another.

Man conquers the world by conquering himself.

A bad feeling is a commotion of the mind repugnant to reason, and against nature.

Wellbeing is attained little and little, and nevertheless is no little thing itself.

When a dog is tied to a cart, if it wants to follow, it is pulled and follows, making its spontaneous act coincide with necessity. But if the dog does not follow, it will be compelled in any case. So it is with men too: even if they don't want to, they will be compelled to follow what is destined.

Since, O Mazda, from the beginning, Thou didst create soul and body […] you wished that everyone should choose his or her own faith and path freely .

That nature alone is good which shall not do unto another whatever is not not good unto itself.

Man’s duty is three-fold: To make him who is an enemy a friend, to make him who is wicked righteous; and to make him who is ignorant learned.

Truth is best of all that is good.

For a thinking man is where Wisdom is at home.

A reflective, contented mind is the best possession.

Satisfaction linked with dishonor or with harm to others is a prison for the seeker.

A righteous government is of all the most to be wished for […] To effect this I shall work now and ever more.

Homo sapiens as we know them will disappear in a century or so.

Industrial farming is one of the worst crimes in history... the fate of industrially farmed animals [is] one of the most pressing ethical questions of our time.

If governments and corporations succeed in hacking the human animal, the easiest people to manipulate will be those who believe in free will.

Things are better than ever before. Things are still quite bad. Things can get much worse. This adds up to a somewhat optimistic view because if you realize things are better than before, this means we can make them even better.