John Adams Quotes about Philosophy
I must study politics and war that my sons may have liberty to study mathematics and philosophy.
John Adams (2003). “The Letters of John and Abigail Adams”, p.264, Penguin
John Adams (2016). “John Adams: Writings from the New Nation, 1784-1826”, p.102, Library of America
John Adams (2015). “The Works of John Adams Vol. 4: Novanglus, Thoughts on Government, Defence of the Constitution I”, p.210, Jazzybee Verlag