In dealing with the arrogant asserter of doubt, it is not the right method to tell him to stop doubting. It is rather the right method to tell him to go on doubting, to doubt a little more, to doubt every day newer and wilder things in the universe, until at last, by some strange enlightenment, he may begin to doubt himself.
Satisfy yourself beyond all doubt that you are qualified for the course to which you now aspire.....and try to achieve something in your own land before you venture on a strange one.
The passage of time has not altered the capacity of the Redeemer to change men’s lives. As he said to the dead Lazarus, so he says to you and me: “come forth.” Come forth from the despair of doubt. Come forth from the sorrow of sin. Come forth from the death of disbelief. Come forth to a newness of life. Come forth.
Don't imagine that you'll discover {the truth} by accumulating more knowledge. Knowledge creates doubt, and doubt makes you ravenous for more knowledge. You can't get full eating this way.