"I am in earnest; I will not equivocate; I will not excuse; I will not retreat a single inch; and I will be heard."

"With reasonable men I will reason; with humane men I will plea; but to tyrants I will give no quarter, nor waste arguments where they will certainly be lost."

"We have to distrust each other. It's our only defense against betrayal."

"The passions are the seeds of vices as well as of virtues, from which either may spring, accordingly as they are nurtured. Unhappy they who have never been taught the art to govern them!"

"In the depth of winter, I learned that within me there lay an invincible summer."

"RADIUM, n. A mineral that gives off heat and stimulates the organ that a scientist is a fool with."

"Expect everything, and anything seems nothing. Expect nothing, and anything seems everything."

"Life is consciousness."