One doesn't discover new lands without consenting to lose sight of the shore for a very long time. The Counterfeiters

As for life, it is a battle and a sojourning in a strange land; but the fame that comes after is oblivion. Book II

When a simple man who has no skill in dialectics believes an argument to be true which he afterwards imagines to be false, whether really false or not, and then another and another, he no longer has any faith left, and great disputers, as you know, come to think, at last that they have grown to be the wisest of mankind; for they alone perceive the utter unsoundness and instability of all arguments, or, indeed, of all things, which like the currents in the Euripus, are going up and down in never-ceasing ebb and flow. The Trials Of Socrates

We can understand one another, but each of us can only interpret himself. Demian