The highest activity a human being can attain is learning fo... - Baruch Spinoza

"The highest activity a human being can attain is learning for understanding, because to understand is to be free."

"I do not know how to teach philosophy without becoming a disturber of the peace."

"He alone is free who lives with free consent under the entire guidance of reason"

"I have made a ceaseless effort not to ridicule, not to bewail, not to scorn human actions, but to understand them."

"Things which are accidentally the causes either of hope or fear are called good or evil omens."