Famous quotes containing the words constructive, set and/or theory:
“Friendship among nations, as among individuals, calls for constructive efforts to muster the forces of humanity in order that an atmosphere of close understanding and cooperation may be cultivated.”
—Franklin D. Roosevelt (1882–1945)
“One does not set fire to a world which is already lost.”
—Friedrich Dürrenmatt (1921–1990)
“Won’t this whole instinct matter bear revision?
Won’t almost any theory bear revision?
To err is human, not to, animal.”
—Robert Frost (1874–1963)
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