One of the seven cardinal sins is sloth, which is not the same as laziness. Rather, the slothful never try to understand who they are, never ask themselves any objective question about their purpose in reality. To be slothful is to consistently avoid ever having to live according to what we ought to be, based on who and what we are and our intrinsic purpose. In this sense, it is quite possible to be enthusiastic about many things and still be half-hearted men when it comes to the higher things. Indeed, pleasure and business, even education, have long served as a kind of escapism, a strategy proven to help us avoid examining our lives.
– Fr. James V. Schall, S.J.
“The Life of the Mind. On the Joys and Travails of Thinking”