Can one be a saint if God does not exist? That is the only concrete problem I know of today.
I feel more fellowship with the defeated than with saints.
An intellectual is someone whose mind watches itself.
Nature is a burning and frigid, transparent and limited universe in which nothing is possible but everything is given.
There can be no true goodness, nor true love, without the utmost clear-sightedness.
Life can be magnificent and overwhelming -- that is the whole tragedy. Without beauty, love, or danger it would almost be easy to live.