Basic General Knowledge
Theory of Idealism was expounded by George Hegal, Bishop George and Berkeley According to this

all knowledge is derived from sensory experience, by observing and experimenting
mathli is an illusion and that the only reality that which exists mentally
good was pleasure and that evil was pain
base of knowledge is sense-experience, that is, observations governed by scientific principles

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Basic General Knowledge
DRDL stands for

Differential Research and Documentation Laboratary
Department of Research and Development Laboratory
Defence Research and Development Laboratary
None of the listed here

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