Famous quotes containing the words genetic and/or material:
“Nature, we are starting to realize, is every bit as important as nurture. Genetic influences, brain chemistry, and neurological development contribute strongly to who we are as children and what we become as adults. For example, tendencies to excessive worrying or timidity, leadership qualities, risk taking, obedience to authority, all appear to have a constitutional aspect.”
—Stanley Turecki (20th century)
“We must accept or refuse one another as we are. I could tame a hyena more easily than my Friend. He is a material which no tool of mine will work.”
—Henry David Thoreau (1817–1862)