The law in question asserts, that the quantity of force which can be brought into action in the whole of Nature is… — Hermann von Helmholtz Copy Share Image
The quantity of force which can be brought into action in the whole of Nature is unchangeable, and can neither be increased… — Hermann von Helmholtz Copy Share Image
“The dread of a permanently wicked human nature takes two forms. One is a practical fear: that social reform is a waste… — Steven Pinker Copy Share Image
