Threats alone, are the weapons of the threatened man. Leonardo da Vinci More Quotes by Leonardo da Vinci More Quotes From Leonardo da Vinci Nothing is hidden under the sun. Leonardo da Vinci sun Whoever in debate quotes authority uses not intellect, but memory. Leonardo da Vinci self-improvement use memories Darkness is absence of light. Shadow is diminution of light. Leonardo da Vinci shadow light darkness Therefore, O students, study mathematics and do not build without foundations. Leonardo da Vinci engineering foundation science Poor is the pupil who does not surpass his master. Leonardo da Vinci education teacher inspirational Men wrongly lament the flight of time, blaming it for being too swift; they do not perceive that its passage is sufficiently long, but a good memory, which nature has given to us, causes things long past to seem present. Leonardo da Vinci time memories past Virtue is our true wealth and the true reward of its possessor; it cannot be lost, it never deserts us until life leaves us. Leonardo da Vinci desert rewards wealth Everything proceeds from everything else and everything becomes everything, and everything can be turned into everything else. Leonardo da Vinci The natural desire of good men is knowledge. Leonardo da Vinci good-man desire men Just as iron which is not used grows rusty, and water putrefies and freezes in the cold, so the mind of which no use is made is spoilt. Leonardo da Vinci iron mind water Every obstacle yields to stern resolve. Leonardo da Vinci persistence yield perseverance The smallest feline is a masterpiece. Leonardo da Vinci masterpiece cat pet Fire destroys falsehood, that is sophistry, and restores truth, driving out darkness. Leonardo da Vinci intelligent darkness fire We know well that mistakes are more easily detected in the works of others than in one's own. Leonardo da Vinci wells knows mistake Envy wounds with false accusations, that is with detraction, a thing which scares virtue. Leonardo da Vinci envy scare virtue No human investigation can be called real science if it cannot be demonstrated mathematically. Leonardo da Vinci computer real math The artist sees what others only catch a glimpse of. Leonardo da Vinci glimpse artist I roamed the countryside searching for the answers to things I did not understand. Why shells existed on the tops of mountains along with the imprints of coral and plant and seaweed usually found in the sea. Why the thunder lasts a longer time than that which causes it and why immediately on its creation the lightening becomes visible to the eye while thunder requires time to travel. How the various circles of water form around the spot which has been struck by a stone and why a bird sustains itself in the air. These questions and other strange phenomena engaged my thought throughout my life. Leonardo da Vinci creativity eye air I'm not contented to capture the world. I want to change it. Leonardo da Vinci capture want world The lover is moved by the thing loved, as the sense is by that which perceives, and it unites with it and they become one and the same thing... when the lover is united with the beloved it finds rest there; when the burden is laid down there it finds rest. Leonardo da Vinci lovers inspirational life