When the [law making] and [law enforcement] powers are united in the same person... there can be no liberty.
The state of slavery is in its own nature bad.
Every man who has power is impelled to abuse it.
It is necessary from the very nature of things that power should be a check to power.
Vitam Impendere Vero (I consecrate my life to truth).
In constitutional states, liberty is compensation for heavy taxes; in dictatorships, the subsititue is light taxes.