essence of being human is that one does not seek perfection, that one
is sometimes willing to commit sins for the sake of loyalty, that one
does not push asceticism to the point where it makes friendly
intercourse impossible, and that one is prepared in the end to be
defeated and broken up by life, which is the inevitable price of
fastening one’s love upon other human individuals. No doubt alcohol,
tobacco and so forth are things that a saint must avoid, but sainthood
is also a thing that human beings must avoid."