Conversely, the absolute absence of a burden causes man to be lighter than air, to soar into the heights, take leave of the earth and his earthly being, and become only half real, his movements as free as they are insignificant.
What then shall we choose? Weight or lightness?
Parmenides posed this very question in the sixth century before Christ. He saw the world divided into pairs of opposites:
light/darkness, fineness/coarseness, warmth/cold, being/non-being. One half of the opposition he called positive (light, fineness, warmth, being), the other negative. We might find this division into positive and negative poles childishly simple except for one difficulty: which one is positive, weight or lightness?
Parmenides responded: lightness is positive, weight negative.Was he correct or not? That is the question. The only certainty is: the lightness/weight opposition is the most mysterious, most ambiguous of all.
3
I have been thinking about Tomas for many years. But only in the light of these reflections did I see him clearly. I saw him standing at the window of his flat and looking across the courtyard at the opposite walls, not knowing what to do.
He had first met Tereza about three weeks earlier in a small Czech town. They had spent scarcely an hour together. She had accompanied him to the station and waited with him until he boarded the train. Ten days later she paid him a visit. They made love the day she arrived. That night she came down with a fever and stayed a whole week in his flat with the flu.
He had come to feel an inexplicable love for this all but complete stranger; she seemed a child to him, a child someone had put in a bulrush basket daubed with pitch and sent downstream for Tomas to fetch at the riverbank of his bed.
She stayed with him a week, until she was well again, then went back to her town, some hundred and twenty-five miles from Prague. And then came the time I have just spoken of and see as the key to his life: Standing by the window, he looked out over the courtyard at the walls opposite him and deliberated.