All our knowledge has its origin in our perceptions - Leonardo da Vinci

"A beautiful body perishes, but a work of art dies not."

"As a well spent day brings happy sleep, so life well used brings happy death."

"Study without desire spoils the memory, and it retains nothing that it takes in."

"Make your work to be in keeping with your purpose"

"It had long since come to my attention that people of accomplishment rarely sat back and let things happen to them. They went out and happened to things."