General erudition or [[Polymath]] deals with knowledge of many things.
General erudition or [[Polymath]] deals with knowledge of many things.
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==In law==
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In [[law]], knowledge can have various meanings:
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* ''Actual knowledge'' is what a person actually knew at a relevant time.
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* ''Constructive knowledge'' is what a person knew or should have known at a relevant time, i.e., what he would have known if he had exercised reasonable care.
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* ''Imputed knowledge'' can be one person's knowledge imputed to another because of their legal relationship (e.g., agent and principal), knowledge that people are required to have ("Ignorance of the law is no excuse"), or knowledge that someone lacks because of [[willful ignorance]].