Gerolamo Cardano

"To preserve one's faith in dark times is to possess a light no darkness can extinguish."

"The heart knows truths that logic cannot access, and logic reveals truths that emotion cannot feel."

"In the calculation of human happiness, the intangible factors outweigh all the material ones."

"A man who loves only his own wisdom is a man impoverished despite his learning."

"The greatest technological advance is learning to distinguish between what we can do and what we should do."

"To be envious of another's good fortune is to be twice poor: once in fact, and once in spirit."

"The war within the self must be won before any external victory can be sustained."

"Every book is a teacher available to those with ears to hear and eyes to see."

"The man who has mastered the art of listening has mastered the greatest skill of leadership."

"To doubt one's own doubt is to take the first step toward genuine faith."

"In the architecture of the soul, integrity is the cornerstone upon which all else must be built."

"The gift of time cannot be hoarded; it must be spent, and the only question is how wisely."

"A life lived in the shadow of others' expectations is a life never truly lived at all."

"The beautiful thing about ignorance is that it can be remedied; the tragedy is that many prefer to keep it."

"To laugh at oneself before others laugh at you is to claim victory in the battle of pride."

"Every obstacle is an invitation to discover a strength you did not know you possessed."

"The man who speaks of his own virtue has already lost it."

"In the geometry of society, justice is the angle that prevents the structure from collapsing."

"To accept an idea merely because it is old is to worship the past rather than learn from it."

"The inspiration that strikes without preparation will scatter like morning mist."

"A kingdom built on fear will fall; a kingdom built on understanding will endure."

"The scholar who never doubts his own scholarship has abandoned the very method that made him a scholar."