Leonardo da Vinci - ameiwu - Xuite 備份站)
A well-spent day brings happy sleep.
(良好的用了一天帶來愉快的睡眠。)
Leonardo da Vinci
All our knowledge has its origins in our perceptions.
(我們所有的知識有其起源於我們的看法) 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.