Instrumental or mechanical science is the noblest and above all others, the most useful. — Leonardo da Vinci
First study the science, and then practice the art which is born of that science. — Leonardo da Vinci
Fire destroys falsehood, that is sophistry, and restores truth, driving out darkness. — Leonardo da Vinci
Anyone who invokes authors in discussion is not using his intelligence but his memory. — Leonardo da Vinci
Average human “looks without seeing, listens without hearing, touches without feeling, eats — Leonardo da Vinci