“Study without desire spoils the memory, and it retains nothing that it takes in.”
“Just as eating against one’s will is injurious to health, so studying without a liking for it spoils the memory, and it retains nothing it takes in.”
http://books.google.com/books?id=lFXyZLM1XxYC&pg=PT412&dq=%22Just+as+eating+against+one%E2%80%99s+will+is+injurious+to+health%22&hl=en&ei=GFRbTIjiGoL-8AbytdC4Ag&sa=X&oi=book_result&ct=result&resnum=2&ved=0CDUQ6AEwAQ#v=onepage&q=%22Just%20as%20eating%20against%20one%E2%80%99s%20will%20is%20injurious%20to%20health%22&f=false
The Notebooks of Leonardo da Vinci (1883), XIX Philosophical Maxims. Morals. Polemics and Speculations.
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Leonardo Da Vinci 363
Italian Renaissance polymath 1452–1519Related quotes
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“Anybody who says saccharin is injurious to health is an idiot.”
Response when Harvey W. Wiley opposed the the of saccharin because it is injurious to health, as quoted in The History of a Crime Against the Food Law (1929) by Harvey W. Wiley
1900s
Context: You tell me that saccharin is injurious to health? Dr. Rixey gives it to me every day. Anybody who says saccharin is injurious to health is an idiot.