Know the difference between principles based on right or wrong vs. principles based on personal gain, and consider the basis of your own principles.
Marilyn vos Savant

If you look to lead, invest at least 40% of your time managing yourself - your ethics, character, principles, purpose, motivation, and conduct. Invest at least 30% managing those with authority over you, and 15% managing your peers.
Dee Hock

What will become compellingly important is absolute clarity of shared purpose and set of principles of conduct sort of institutional genetic code that every member of the organization understands in a common way, and with deep conviction.
Dee Hock

All married couples should learn the art of battle as they should learn the art of making love. Good battle is objective and honest - never vicious or cruel. Good battle is healthy and constructive, and brings to a marriage the principles of equal partnership.
Ann Landers

We learn by practice. Whether it means to learn to dance by practicing dancing or to learn to live by practicing living, the principles are the same. One becomes in some area an athlete of God.
Martha Graham

He that always gives way to others will end in having no principles of his own.
Aesop

Governments have never learned anything from history, or acted on principles deducted from it.
Georg Wilhelm Friedrich Hegel

Nature has no principles. She makes no distinction between good and evil.
Anatole France

When great changes occur in history, when great principles are involved, as a rule the majority are wrong.
Eugene V. Debs

The truth of good economic doctoring is to know the general principles, and to really know the specifics. To understand the context, and also, to understand that an economy may need some tender loving care, not just the so-called hard truths, if it's going to get by.
Jeffrey Sachs

If one sticks too rigidly to one's principles, one would hardly see anybody.
Agatha Christie

By denying scientific principles, one may maintain any paradox.
Galileo Galilei

Dr. King's general principles are universal. But the things he confronted took place in another era.
Al Sharpton

Finally there are simple ideas of which no definition can be given; there are also axioms or postulates, or in a word primary principles, which cannot be proved and have no need of proof.
Gottfried Leibniz

We love your adherence to democratic principles.
William F. Buckley, Jr.

This means that to entrust to science - or to deliberate control according to scientific principles - more than scientific method can achieve may have deplorable effects.
Friedrich August von Hayek

To have doubted one's own first principles is the mark of a civilized man.
Oliver Wendell Holmes, Jr.

A man is usually more careful of his money than of his principles.
Oliver Wendell Holmes, Jr.

When the target audience is American teenage kids, you can have problems. My generation prized really fine acting and writing. Sometimes you have to go back to the basic principles which underpin great visual comedy.
John Cleese

Its easy to have principles when you're rich. The important thing is to have principles when you're poor.
Ray Kroc