Leonardo da Vinci “A well-spent day brings happy sleep.” Leonardo da Vinci View all quotes by Leonardo da Vinci →
“Although nature commences with reason and ends in experience it is necessary for us to do the opposite, that is to commence with experience and from this to proceed to investigate the reason.” Leonardo da Vinci
“Anyone who conducts an argument by appealing to authority is not using his intelligence; he is just using his memory.” Leonardo da Vinci
