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In the contexts of religion and politics, words are not regarded as standing, rather inadequately, for things and events; on the contrary things and events are regarded as particular illustrations of words.

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Roger Bacon

For if any man who never saw fire proved by satisfactory arguments that fire burns. His hearer's mind would never be satisfied, nor would he avoid the fire until he put his hand in it that he might learn by experiment what argument taught.

Experiment, Fire, Hands, Learn, Men, Proved
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Vacuum stands and remains a mathematical space. A cube placed in a vacuum would not displace anything, as it would displace air or water in a space already containing those fluids.

Air, Cube, Remains, Space, Water

Argument is conclusive, but it does not remove doubt, so that the mind may rest in the sure knowledge of the truth, unless it finds it by the method of experiment.

Argument, Doe, Doubt, Knowledge, Mind

First, by the figurations of art there be made instruments of navigation without men to row them, as great ships to brooke the sea, only with one man to steer them, and they shall sail far more swiftly than if they were full of men; also chariots that shall move with unspeakable force without any living creature to stir them. Likewise an instrument may be made to fly withall if one sits in the midst of the instrument, and do turn an engine, by which the wings, being artificially composed, may beat the air after the manner of a flying bird.

Art, Artificially, Flying, Instruments, Men, Moving

But we must here state that we should not see anything if there were a vacuum. But this would not be due to some nature hindering species, and resisting it, but because of the lack of a nature suitable for the multiplication of species; for species is a natural thing, and therefore needs a natural medium; but in a vacuum nature does not exist.

Doe, Exist, Natural, Needs, Vacuum, Vacuums

But concerning vision alone is a separate science formed among philosophers, namely, optics, and not concerning any other sense. . . It is possible that some other science may be more useful, but no other science has so much sweetness and beauty of utility. Therefore it is the flower of the whole of philosophy and through it, and not without it, can the other sciences be known.

Flower, Formed, Philosophy, Vision
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