The bitter and the sweet come from the outside, the hard from within, from one's own efforts.
Albert EinsteinThe history of scientific and technical discovery teaches us that the human race is poor in independent and creative imagination. Even when the external and scientific requirements for the birth of an idea have long been there, it generally needs an external stimulus to make it actually happen; man has, so to speak, to stumble right up against the thing before the idea comes.
Albert EinsteinWhether or not you can observe a thing depends upon the theory you use. It is the theory which decides what can be observed.
Albert EinsteinWhen I read the Bhagavad-Gita and reflect about how God created this universe everything else seems so superfluous
Albert Einstein