Frases celebres de leonardo da vinci [ingles]

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  • Publicado : 16 de febrero de 2011
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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 theopposite, 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 usinghis memory.

Art is never finished, only abandoned.

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

As every divided kingdom falls, so every mind dividedbetween many studies confounds and saps itself.

Beyond a doubt truth bears the same relation to falsehood as light to darkness.

Blinding ignorance does mislead us. O! Wretched mortals, open your eyes!Common Sense is that which judges the things given to it by other senses.

Experience does not err. Only your judgments err by expecting from her what is not in her power.

For once you havetasted flight you will walk the earth with your eyes turned skywards, for there you have been and there you will long to return.

He who is fixed to a star does not change his mind.

He who lovespractice without theory is like the sailor who boards ship without a rudder and compass and never knows where he may cast.

He who wishes to be rich in a day will be hanged in a year.

Humansubtlety will never devise an invention more beautiful, more simple or more direct than does nature because in her inventions nothing is lacking, and nothing is superfluous.

I have been impressed withthe urgency of doing. Knowing is not enough; we must apply. Being willing is not enough; we must do.

I have offended God and mankind because my work didn't reach the quality it should have.

I havewasted my hours.

I love those who can smile in trouble, who can gather strength from distress, and grow brave by reflection. 'Tis the business of little minds to shrink, but they whose heart is...
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