There are two principles of ...

There are two principles of established acceptance in morals; first, that self-interest is the mainspring of all of our actions, and secondly, that utility is the test of their value.
There are two principles of established acceptance in morals; first, that self-interest is the mainspring of all of our actions, and secondly, that utility is the test of their value.

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[The Jews] tried to kill the principles of all religions with the same mentality in which they betrayed Jesus Christ and the same way they tried to betray and kill the Prophet Muhammad.
 Bashar al-Assad
The Warrior Diet is the only diet today that challenges all common dietary concepts and offers a real alternative—guidelines that are not based on superficial restrictions, but rather on true principles of human nutrition.
 Ori Hofmekler
Men are anxious to improve their circumstances, but are unwilling to improve themselves; they therefore remain bound.
Men submit from habit to everything that seeks power.
My mother was the source from which I derived the guiding principles of my life.
 John Wesley

Quotes from the same author

True friendship is like sound health; the value of it is seldom known until it is lost.
Man, if he compare himself with all that he can see, is at the zenith of power; but if he compare himself with all that he can conceive, he is at the nadir of weakness.
An Irish man fights before he reasons, a Scotchman reasons before he fights, an Englishman is not particular as to the order of precedence, but will do either to accommodate his customers.
In great cities men are more callous both to the happiness and the misery of others, than in the country; for they are constantly in the habit of seeing both extremes.
Men will wrangle for religion, write for it, fight for it, die for it; anything but live for it.