Yes...and an amazing intellect who, I think, tried to be honest. I had heard, though, that he couldn't tie his own shoes and that he didn't speak until he was 4 years old.
Einstein has the reputation of a scrupulously honest man, testified to by friends and colleagues alike. But it's possible that those who really knew and loved him understood and responded to, first of all, his personal grace and humility. And were probably delighted by his wry sense of humor....
His family was worried about him, right from birth: The newborn had the most over-sized, seemingly misshapen head! Then the babe said not a word until age two — and then, as a family member reports, only after carefully, silently, but with moving lips, rehearsing every word before finding them fit to actually articulate out loud.
At six, it is reported he had his first real "epiphany" in life: A compass was presented to his inspection. Einstein evidently was dumbstruck at the insight that this simple physical device could suggest so very much more about the larger world.
Also at age six, he began attending Catholic school.
At age 11, he was in the throes of a profound religious devotion, of Orthodox Jewish character. He kept Kosher; he attended synagogue; he followed the Law to a tee; he even composed poems and hymns to God, that he would sing, going from here to there....
At some point (not very long thereafter), all that came to a STOP. And evidently Einstein never looked back.
My own "theory" of this is: Einstein didn't have to look back; he'd seen enough to know that he could move forward in freedom, because he had a rock to stand on.
He didn't trouble himself about doctrinal details.
At least, that would be my story.