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.
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.
You cannot receive a shock unless you have an electric affinity for that which shocks you.
Stand for something. Don't quest for popularity at the expense of morality and ethics and honesty.
Morality is not respectability.
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.
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.
The most important persuasion tool you have in your entire arsenal is integrity.
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.
Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.
A man's ethical behaviour should be based effectually on sympathy, education, and social ties and needs; no religious basis is necessary. Man would indeed be in a poor way if he had to be restrained by fear of punishment and hope of reward after death.
Relativity applies to physics, not ethics.
It is curious that physical courage should be so common in the world and moral courage so rare.
Ethics is in origin the art of recommending to others the sacrifices required for cooperation with oneself.
Morality is the custom of one's country and the current feeling of one's peers.
A man without ethics is a wild beast loosed upon this world.
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.
Integrity is telling myself the truth. And honesty is telling the truth to other people.
Man would indeeded be in a poor way if he had to be restrained by fear of punishment and hope of reward after death.
Ethics is the activity of man directed to secure the inner perfection of his own personality.
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