Gradually the conviction gained recognition that all knowledge about things is exclusively a working-over of the raw material furnished by the senses. ... Galileo and Hume first upheld this principle with full clarity and decisiveness.
The fourfold root of the principle of sufficent reason is "Anything perceived has a cause. All conclusions have premises. All effects have causes. All actions have motives.
The one great principle of the English law is, to make business for itself. There is no other principle distinctly, certainly, and consistently maintained through all its narrow turnings.
Softness triumphs over hardness, feebleness over strength. What is more malleable is always superior over that which is immoveable. This is the principle of controlling things by going along with them, of mastery through adaptation.
Capitalism justified itself and was adopted as an economic principle on the express ground that it provides selfish motives for doing good, and that human beings will do nothing except for selfish motives
The principle which prompts to save is the desire of bettering our conditiona desire which?comes with us from the womb and never leaves us till we go into the grave.
Because of lack of moral principle, human life becomes worthless. Moral principle, truthfulness, is a key factor. If we lose that, then there is no future.
Friendship with the upright, with the truthful and with the well informed is beneficial. Friendship with those who flatter, with those who are meek and who compromise with principles, and with those who talk cleverly is harmful.