對海德格，哲學嘅衰嘢唔係 重未有外在於我地嘅世界（存在）嘅證明，而係從未有人去揾呢個證明。 At the same time his own project is hugely ambitious, in that he is interested not in the being of certain things, such as are studied in various (ontical) categories such as, biology, physics, psychology, and history, but in the question of being in general (the ontological question), of why or how there is something rather than nothing. Being in general is the most difficult because, like a smell that was always in our nose, it is almost always there, it is closest and for the most part there. Only in a state of anxiety (and not fear, which is fear of something in particular), where the whole world itself is pushed away, can we see something of this and get some authentic sight of it, before we again take up some activity and get lost in it.