إنّ علما بدون دين هو علم أعرج ، ودين بدون علم هو دين اعمى .

“I never think of the future - it comes soon enough.”

“It is every man's obligation to put back into the world at least the equivalent…”

“The environment is everything that isn't me.”

“la gravedad no es culpable que la gente se enamore”