People do not like to think. If one thinks, one must reach conclusions. Conclusions are not always pleasant.Helen Keller
A purpose, an intention, a design, strikes everywhere even the careless, the most stupid thinker.David Hume
The chief benefit, which results from philosophy, arises in an indirect manner, and proceeds more from its secret, insensible influence, than from its immediate application.David Hume
Reason is, and ought only to be the slave of the passions, and can never pretend to any other office than to serve and obey them.David Hume
There are two distinct classes of what are called thoughts: those that we produce in ourselves by reflection and the act of thinking and those that bolt into the mind of their own accord.Thomas Paine
To argue with a man who has renounced the use and authority of reason, and whose philosophy consists in holding humanity in contempt, is like administering medicine to the dead, or endeavoring to convert an atheist by scripture.Thomas Paine
The propensity to truck, barter and exchange one thing for another is common to all men, and to be found in no other race of animals.Adam Smith
There is a boundary to men's passions when they act from feelings; but none when they are under the influence of imagination.Edmund Burke
