Man has been called a rational being, but rationality is a matter of choice... Man has to be a man-by choice; he has to hold his life as a value-by choice; he has to learn to sustain it-by choice; he has to discover the values it requires and practice his virtues by choice. A code of values accepted by choice is a code of morality.
Ayn RandContrary to the ecologists, nature does not stand still and does not maintain the kind of equilibrium that guarantees the survival of any particular species - least of all the survival of her greatest and most fragile product: man.
Ayn RandIndividualism regards man-every man-as an independent, sovereign entity who possesses an inalienable right to his own life, a right derived from his nature as a rational being.
Ayn Rand