Everything not forbidden is compulsory

Everything not forbidden by the laws of nature, he assured her - quoting a colleague down the hall - is mandatory.

Whatever is not forbidden is permitted.

Seems to be a deep instinct in human beings for making everything compulsory that isn't forbidden.

Every one must be supposed to be cognizant of a public law.

Everything which is demanded is by that fact a good.

‘Mandatory’ means forced—at gunpoint, if necessary. When we force people to do things, for their own good or the good of others, we violate their right of self-determination. Libertarians respect the rights of others to choose their own path—that’s what liberty is all about. If community service is such a good deal, we should have no trouble persuading people to do it voluntarily. If we can’t convince others that our way is best, maybe we should humbly consider the possibility that it isn’t.

There is a maxim about the universe which I always tell my students: That which is not explicitly forbidden is guaranteed to occur.

Translation: No one is bound to be clever, but every one is under an obligation to be good.

Anything is true, is essential to the national.

Nobody is obliged to be genious but everybody is obliged to participate.

Everything that can be tested must be tested,

Translation: You must obey the law, always, not only when they grab you by your special place.

Five [of the above] rules are of absolute necessity, and cannot be dispensed with without essential defect and often without error.