Quid quid movetur ab alio movetur"(nothing moves without having been moved).

Good laws, if they are not obeyed, do not constitute good government.

Where your talents and the needs of the world cross; there lies your vocation.

All food must be capable of being digested, and that what produces digestion is warmth; that is why everything that has soul in it possesses warmth.

Happiness is something final and complete in itself, as being the aim and end of all practical activities whatever .... Happiness then we define as the active exercise of the mind in conformity with perfect goodness or virtue.

That which is common to the greatest number has the least care bestowed upon it

It is clearly better that property should be private, but the use of it common; and the special business of the legislator is to create in men this benevolent disposition.