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Quotes by Leonardo Da Vinci
- A well-spent day brings happy sleep.
- All our knowledge has its origins in our perceptions.
- 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.
- Anyone who conducts an argument by appealing to authority is not using his intelligence he is just using his memory.
- Art is never finished, only abandoned.
- As a well-spent day brings happy sleep, so a life well spent brings happy death.
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