Roger Bacon — "Theology itself, which is the queen of the sciences, cannot be perfect without p…"
Theology itself, which is the queen of the sciences, cannot be perfect without philosophy.
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More from Roger Bacon
"It is necessary to know the causes of things, and not only their effects, if we wish to have perfect knowledge."
"The four greatest stumbling blocks to understanding are: authority, long-standing custom, the sense of the ignorant crowd, and the hiding of one's own ignorance under the show of wisdom."
"The study of magic, though often abused, contains many useful truths."
"For without experiment nothing can be sufficiently known. Therefore, he who wishes to be certain of the truths of things must have recourse to experiment."
"The greatest errors in the world arise from the neglect of experiment."