Gottfried Leibniz

"Virtue is nothing else than a habit of good actions."

"What we can imagine, the mind can grasp; what we can grasp, we can understand."

"The errors of great minds are instructive."

"True knowledge comes from within, awakened by external experience."

"Justice consists in the preservation of the social order."

"The soul is the principle of life and activity."

"We must distinguish between apparent and real goods."

"The strength of a mind lies in its capacity for clear and distinct ideas."

"Fear often prevents us from pursuing our highest aspirations."

"Power without wisdom is tyranny; wisdom without power is futility."

"Commerce and trade promote the advancement of civilization."

"Health is the greatest of earthly goods."

"The adventurous spirit drives human progress."

"Imagination is the beginning of creation."

"Technology should serve humanity, not enslave it."

"History reveals the patterns of human nature and society."

"The structure of atoms mirrors the structure of the cosmos."

"A just society is built on rational principles and mutual respect."

"Patience is the virtue of understanding that all things unfold in their proper time."

"Small kindnesses compound into great good."

"Strength of character is developed through adversity."

"True courage is knowing when not to act."

"Change is the only constant in the natural world."

"The pursuit of knowledge is the noblest of human endeavors."

"Time itself may be nothing but an ordering of events."

"Truth cannot contradict itself; contradiction is the mark of error."

"Freedom exists when we act according to our own nature and reason."

"Peace between nations requires justice and understanding."

"Art imitates nature, but adds the order of human understanding."

"Scientific inquiry reveals the mathematical harmony of creation."