"They (religions) dread the advance of science as witches do the approach of daylight and scowl on the fatal harbinger announcing the subversions of the duperies on which they live."
"There is nothing more unequal than the equal treatment of unequal people."
"Peace and friendship with all mankind is our wisest policy, and I wish we may be permitted to pursue it."
"I was bold in the pursuit of knowledge, never fearing to follow truth and reason to whatever results they led."
"A nation which expects to be ignorant and free, in a state of civilization, expects that which never was and never will be."
"The glow of one warm thought is to me worth more than money."