No morality can be founded on authority, even if the authority were divine.
The flea, though he kill none, he does all the harm he can.
What is morality but immemorial custom? Conscience is the chief of conservatives.
You've got to be brave and you've got to be bold. Brave enough to take your chance on your own discrimination, what's right and what's wrong, what's good and what's bad.
You cannot receive a shock unless you have an electric affinity for that which shocks you.
There are ten commandments, right? Well, it's like an exam. You get eight out of ten, you're just about top of the class.
Stand for something. Don't quest for popularity at the expense of morality and ethics and honesty.
Morality is not respectability.
Have the courage to say no. Have the courage to face the truth. Do the right thing because it is right. These are the magic keys to living your life with integrity.
It is customary these days to ignore what should be done in favour of what pleases us.
Do the right thing because it is right.
I do not believe in immortality of the individual, and I consider ethics to be an exclusively human concern with no superhuman authority behind it.
To act without rapacity, to use knowledge with wisdom, to respect interdependence, to operate without hubris and greed are not simply moral imperatives. They are an accurate scientific description of the means of survival.
Even the most rational approach to ethics is defenseless if there isn't the will to do what is right.
Have the courage to face the truth
Ethics, too, are nothing but reverence for life. This is what gives me the fundamental principle of morality, namely, that good consists in maintaining, promoting, and enhancing life, and that destroying, injuring, and limiting life are evil.
What is moral is what you feel good after.
A man without ethics is a wild beast loosed upon this world.
Morality is the custom of one's country and the current feeling of one's peers.
Don't be too moral. You may cheat yourself out of much life so.
The most important persuasion tool you have in your entire arsenal is integrity.
Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.
About morals, I know only that what is moral is what you feel good after and what is immoral is what you feel bad after.
Live so that when your children think of fairness, caring, and integrity, they think of you.
It is curious that physical courage should be so common in the world and moral courage so rare.
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