The light of natural reason is not less certain than that of revelation.
Cogito ergo sum
Attributed, though exact source is debated
Unknown
Found in 1 providers: grok
Cross Reference
1 source
"The nature of the mind is entirely distinct from that of the body."
Controversial"To be a good philosopher, one must be a good mathematician."
Shocking"All that is solid melts into air."
Strange & Unusual"I concluded that I was a substance whose whole essence or nature consists in thinking, and whose being does not depend on any place or any material thing."
Controversial"My entire life has been directed toward the acquisition of knowledge."
Shocking