Valence Bond Approach

Famous quotes containing the words bond and/or approach:

“The bond between a man and his profession is similar to that which ties him to his country; it is just as complex, often ambivalent, and in general it is understood completely only when it is broken: by exile or emigration in the case of one’s country, by retirement in the case of a trade or profession.”
—Primo Levi (1919–1987)

“This is an approach to that universal language which men have sought in vain.”
—Henry David Thoreau (1817–1862)