Every absolute is destroyed through rigor. 112

You do ill if you praise, but worse if you censure, what you do not understand.

The greatest deception men suffer is from their own opinions.

Man does not vary far from the animals except in what is accidental. 106

The desire to know is natural to good men. 107

Let no one read me who is not a mathematician. 86

Given the abundance of natural forms, it is important to go straight to nature. 110

A new and speculative idea, which although it may seem trivial and almost laughable, is nonetheless of great value in quickening the spirit of invention.

The sun does not move. 105

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The knowledge of all things is possible. 104

Better death than to be without freedom. 108

Study the science of are and the art of science.114

You can have no dominion greater or less than that over yourself.

The function of muscle is to pull and not to push, except in the case of the genitals and the tongue. CITATION

... nature is full of infinite causes that experience has never demonstrated. 122

Experience never errs; it is only your judgement that errs in promising iteself results as are not caused by your experiments. 111

The human foot is a masterpiece of engineering and a work of art.

The greatest geniuses sometimes accomplish more when they work less. 113

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Feathers will raise men even as the do birds, toward heaven; that is by letters written with their quills. 109

Rest your head and keep your mind cheerful. 116

Why does the eye see a thing more clearly in dreams than the imagination when awake?

Simplicity is the ultimate sophistication.

Learning never exhausts the mind.

Among the great things which are found among us, the existence of Nothing is the greatest. 120

The truth of things is the chief nutriment of superior intellects.

The noblest pleasure is the joy of understanding.

Every part is disposed to unite with the whole, that it may thereby escape from its own incompleteness. 117

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Beware of anger and avoid grievous moods. 115

Where there is shouting, there is no true knowledge. 0

The earth is moved from its position by the weight of a tiny bird resting upon it. 118

Where the spirit does not work with the hand, there is no art.

The smallest feline is a masterpiece.

Human subtlety 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.

The poet ranks far below the painter in the representation of visible things, and far below the musician in that of invisible things.

Anyone who conducts an argument by appealing to authority is not using his intelligence; he is just using his memory.

Iron rusts from disuse; water loses its purity from stagnation... even so does inaction sap the vigor of the mind.

Nothing has no center, and its boundaries are nothingness. 119

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Everything comes from everything, and everything is made out of everything, and everything returns into everything... 121

There are three classes of people: those who see, those who see when they are shown, those who do not see.

Art is never finished, only abandoned.

Nothing strengthens authority so much as silence.