Roger Bacon — "It is necessary to know the causes of things, and not only their effects, if we …"
It is necessary to know the causes of things, and not only their effects, if we wish to have perfect knowledge.
It is necessary to know the causes of things, and not only their effects, if we wish to have perfect knowledge.
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"The study of optics is of the greatest utility, for it teaches us to understand the nature of light, and of all things that are visible."
"The secrets of nature are not revealed to those who rely on books alone."
"It is better to learn from the infidels than to remain in ignorance."
"The common way of teaching is rather for ostentation than for instruction."
"The greater part of the world is ignorant of the true wisdom, and is ruled by error and deception."
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