It must be conceded that a theory has an important advantage if its basic concepts and fundamental hypotheses are 'close to experience,' and greater confidence in such a theory is certainly justified. There is less danger of going completely astray, particularly since it takes so much less time and effort to disprove such theories by experience. Yet more and more, as the depth of our knowledge increases, we must give up this advantage in our quest for logical simplicity in the foundations of physical theory.
Albert EinsteinEnough for me is the mystery of the eternity of life, and the inkling of the marvelous structure of reality. There is in this neither a will nor a goal, nor a must, but only sheer being.
Albert EinsteinThere two things that are infinite, human stupidity and the universe, I don't know about the universe
Albert Einstein