Once a new paradigm takes ...

Once a new paradigm takes hold, its acceptance is extraordinarily rapid and one finds few who claim to have adhered to a discarded method.
 Bernard Lown

Quotes from the same author

We physicians have focused on the nuclear threat as the singular issue of our era. We are not indifferent to other human rights and hard-won civil liberties. But first we must be able to bequeath to our children the most fundamental of all rights, which preconditions all others; the right to survival.
 Bernard Lown
The security provided by a long-held belief system, even when poorly founded, is a strong impediment to progress. General acceptance of a practice becomes the proof of its validity, though it lacks all other merit.
 Bernard Lown
Nuclear bombs have made mass murder a reality. Nuclear bombs threaten humankind.
 Bernard Lown