A man does not wonder at what he sees frequently, even though he be ignorant of the reason. If anything happens which he has not seen before, he calls it a prodigy.
Friendship, on the other hand, serves a great host of different purposes all at the same time. In whatever direction you turn, it still remains yours. No barrier can shut it out. It can never be untimely; it can never be in the way. We need friendship all the time, just as much as we need the proverbial prime necessities of life, fire and water.