"But to have a friend, and to be true under any and all trials, is the mark of a man!"

In this quote, Charles Eastman stresses the value of real relationship and loyalty. He suggests that it is inadequate to just have a friend, however to also stay real and unfaltering in that friendship through any and all difficulties. This, according to Eastman, is what genuinely defines a guy. It speaks with the concept of integrity and the value of having someone who will stand by you no matter what. Eastman's words work as a reminder to treasure and nurture real friendships, as they are a real testimony to one's character and strength.