Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts.  Innocents Abroad

Stop being who you were and become who you are. The Zahir

As there are misanthropists, or haters of men, there are also misologists or haters of ideas, and both spring from the same cause, which is ignorance of the world. Misanthropy arises from too great confidence of inexperience; you trust a man and think him altogether true and good and faithful, and then in a little while he turns out to be false and knavish; and then another and another, and when this has happened several times to a man, especially within the circle of his most trusted friends, as he deems them, and he has often quarreled with them, he at last hates all men, and believes that no one has any good in him at all. ...The reason is that a man, having to deal with other men, has no knowledge of them; for if he had knowledge he would have known the true state of the case, that few are the good and few the evil, and that the great majority are in the interval between them. The Trials Of Socrates

I have always thought that clarity is a form of courtesy that the philosopher owes; moreover, this discipline of ours considers it more truly a matter of honor today than ever before to be open to all minds … This is different from the individual sciences which increasingly [interpose] between the treasure of their discoveries and the curiosity of the profane the tremendous dragon of their closed terminology. What is Philosophy?