“Scientists were rated as great heretics by the church, but they were truly religious men because of their faith in the orderliness of the universe.”
- Albert Einstein
Science is indeed based purely on faith; the faith that you live in an objective universe. You could just as easily be living in a subjective universe in which you are unknowingly creating everything you are experiencing. With that possibility, you must take it on faith that you’re living in an objective universe and not the subjective one that only seems objective.
As Einstein said so well, scientists are truly religious men because of their faith in the orderliness of the universe.
Science is based on the hypothesis that the universe is orderly. That hypothesis is confirmed by the success of well-ordered scientific models. So it is an experimentally confirmed confidence, or "faith", distinct from and much stronger than the unquestioning faith in the authority of the Bible which Einstein abandoned as a child.
Einstein's sayings, strewn haphazard about the net, are playfully terse and poetic, and without context easily misconstrued. I'm not sure the source of this quote (I have seen it attributed to the 18th century British chemist Humphry Davy, though as far as I can tell, this is erroneous), but assuming it is his, in the full context of his writings, he's clearly not saying that Science is based in the same sort of faith in authority that Religion is, and which Einstein explicitly rejected. It is based in careful observation, speculation refined by experiment, which inspired in Einstein a lifelong awe at the grand order it reveals. If one goal of religion is to reveal the universe and our place in it, then, in this poetic sense, science is true "religion", and scientists are truly "religious", because their understanding of and respect for the universe surpasses traditional, authority-based religion, would seem to have been Einstein's intent. However, I would be interested to see the quote in full context.
A man once said that I am an atheist. I have no faith.
I told him "Fine. Do you drive a car? He said yes. I asked him if he reached home safely daily in the evening for his dinner with the family? He said yes."
Then I told, you might be an atheist not believing in God. But you do have faith.
He asked me How?
I said, "You have faith in braking system of your ca, you have faith that the driver in front and back of you knows how to drive. You have faith that the traffic cops are doing their duty. You have faith that lights will work when there is darkness. You have faith that your family will be there when you reach home safely. You have faith that dinner will be served when you reach home.
Thus your life is full of faith.
It is enough if you have faith.
Again (and this confusion of experimentally or experientially confirmed confidence with religious faith in the authority of scripture is so pervasive it should have its own name, zip code, and congressman: "the G g equivocation": Faith in God = faith in gravity... NOT!), you are confusing two different things, which owing to the limits of the English language happen to be referred to by the same word, but which are nevertheless different, as different as an iconic 70's rock band is from Elizabeth II, so different, in fact, as to be opposites.
The "faith" referred to above -- in your car's brakes and traffic lights and dinner when you get home -- is confidence acquired from repeated observation and practice. It is based in testable experiment and simple experience. The very sort of thing that science deals with. It is not religious faith. There is a world of difference between "I believe the traffic lights will work today" and "I believe my soul will go to heaven when I die." The one is based on an experience you and others have had many times before, and thus have good reason to believe in; the other, is not.