Time is of enormous importance to us. Not chronological time, not going to the office every day, taking the train or bus, keeping an appointment – that is very trivial; one has to do it. What is important is psychological time, which has been broken up as yesterday, today and tomorrow. We are always living in the past. Always. The now is the past because the now is the continuation of memory, the recognition of what has been, which cannot be altered – and that is going on now. We live in the memory of youth, in the remembrance of things that have been, or in the image of tomorrow. So our life – and therein lies the great sorrow – is a gradual decay, a gradual withering, senility. The brain cells become weak and lose their energy, vitality and force as one grows older. The brain becomes weak: memory disappears and we become senile, which is the repetition of what has been. That is how we are living. Though we are active, we are senile because we are always living in the past.