To believe with certainty we must begin by doubting.

I never cease being dumbfounded by the unbelievable things people believe

We are slow to believe that which if believed would hurt our feelings.

It is easier to believe than to doubt.

With most people unbelief in one thing is founded upon blind belief in another.

As a rule we disbelieve all the facts and theories for which we have no use.

We are all tattooed in our cradles with the beliefs of our tribe; the record may seem superficial, but it is indelible. You cannot educate a man wholly out of superstitious fears which were implanted in his imagination, no matter how utterly his reason may reject them.

If you must tell me your opinions, tell me what you believe in. I have plenty of doubts of my own.

We are born believing. A man bears beliefs, as a tree bears apples.

He that will believe only what he can fully comprehend must have a long head or a very short creed.