Interest makes some people blind, and others quick-sighted.
There are no uninteresting things, there are only uninterested people.
No use to shout at them to pay attention. If the situations, the materials, the problems before the child do not interest him, his attention will slip off to what does interest him, and no amount of exhortation of threats will bring it back.
The virtues and vices are all put in motion by interest.
I don't believe in principle, but I do in interest.
A man's interest in the world is only an overflow from his interest in himself.
Only free peoples can hold their purpose and their honor steady to a common end and prefer the interest of mankind to any narrow interest of their own.