Almost no germ is unconditionally dangerous to man; its disease-producing ability depends upon the body's resistance.
The element of chance in basic research is overrated. Chance is a lady who smiles only upon those few who know how to make her smile.
Unlock your natural drives by doing what you enjoy.
As much as we thirst for approval we dread condemnation.
Gratitude conserves the vital energies of a person more than any other attitude tested.
My advice to any young person at the beginning of their career is to try to look for the mere outlines of big things with their fresh, untrained and unprejudiced mind.