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Substances Known Quotes by Frances M. Young
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- Marijuana is one of the safest, therapeutically active substances known to man. — Frances M. Young
- The most callous, stupid things were done just because regulations required them...It was not until 1983, for example, that U.S. federal agencies… — Peter Singer
- The demonstration that no possible combination of known substances, known forms of machinery and known forms of force, can be united in… — Simon Newcomb