“Without death there is little innovation. Extinction - death of a species - is part and parcel of evolutionary change. In the absence of this kind of extinction new developments would not prosper. ...”

“Stay strong in strength of spirituality.”

“Pain gives you will power to survive, to survive you have to fight, the struggle makes you strong. strength makes you mature, maturity makes you immune to the things that causes you pain. Things hu...”

“Beyond the limit of suffering is strength.”

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”