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 firm, and whose conscience approves their conduct, will pursue their principles unto death.

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We cannot solve problems with the kind of thinking we employed when we came up with them. —Albert Einstein

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Once you have tasted flight, you will forever walk the earth with your eyes turned skyward. For there you have been, and there you will always long to return ― Leonardo da Vinci

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You don't get into trouble because of the things you don't know. It is the things you don't know you don't know that really get you into a mess.

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All thoughts start from emotions.

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Any time not spent on love is wasted. - Torquato Tasso

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He who in reasoning cites authority is making use of his memory rather than of his intellect. ― Leonardo da Vinci

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Tomaso of Florence. known as Masaccio, showed by his perfect works how those who took their nourishment from anything but nature, mistress of masters, were laboring in vain. ― Leonardo da Vinci

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The wisest and noblest teacher is nature itself.

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It had long come to my attention that people of accomplishment rarely sat back and let things happen to them. They went out and happened to things. - LEONARDO DA VINCI

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