With man there has begun this perpetual worrying about what is going to happen, and this worry is the principal, if not the sole cause of his torment. With this objectivising consciousness there has begun anxiety, painful imaginations, worry, torment, anticipation of future catastrophes, with the result that most men—and not the least conscious, the most conscious—live in perpetual torment….
necessary knowledge? And the unfortunate thing is that man believes that he has to resolve all the problems of his life, and he does not have the knowledge needed to do it. That is the source, the origin of all his troubles—that perpetual question, “What should I do?…” which is followed by another one still more acute, “What is going to happen?” and at the same time, more or less, the inability to answer.
Ref : Questions and Answers 1957-1958