One sometimes finds what one is not looking for
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.
The scientific observer of Nature is a kind of mystic seeker in the act of prayer
We are not rich by what we possess but by what we can do without
You talk when you cease to be at peace with your thoughts
The way for a young man to rise is to improve himself in every way he can, never suspecting that anybody wishes to hinder him
Life is like riding a bicycle. To keep your balance you must keep moving
The very essence of instinct is that it's followed independently of reason
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