Nature makes penicillin; I just found it
Scottish biologist, physician, microbiologist, and pharmacologist. His best-known discoveries are the enzyme lysozyme in 1923 and the world's first antibiotic substance benzylpenicillin (Penicillin G) from the mould Penicillium notatum in 1928.
If one cannot enjoy reading a book over and over again, there is no use in reading it at all
I never see what has been done; I only see what remains to be done
A scientific man ought to have no wishes, no affections, - a mere heart of stone
I had to deny knowledge in order to make room for faith
if you love somebody, let them go, for if they return, they were always yours. if they don't, they never were
Every man must decide whether he will walk in the light of creative altruism or in the darkness of destructive selfishness
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