People
Ideologies
100

He is the principal source of the theory of separation of powers, which is implemented in many constitutions throughout the world.

Montisque

100

The principle that a government's legitimacy and moral right to use state power is only justified when derived from the people.

Consent of the governed 

200

An English philosopher and physician, widely regarded as one of the most influential of the Enlightenment thinkers and commonly known as the "father of liberalism, wrote The Two Treatises of Government.

John Locke

200

A fundamental constitutional doctrine dividing government responsibilities into distinct legislative, executive, and judicial branches to prevent tyranny and protect individual liberty

Separation of Powers