Effective Theories

Famous quotes containing the words effective and/or theories:

““More!” is as effective a revolutionary slogan as was ever invented by doctrinaires of discontent. The American, who cannot learn to want what he has, is a permanent revolutionary.”
—Eric Hoffer (1902–1983)

“The theories and speculations of men concern us more than their puny accomplishment. It is with a certain coldness and languor that we loiter about the actual and so-called practical.”
—Henry David Thoreau (1817–1862)