Dad stopped to explain the construction of a bridge, she would find the workman in his blue jeans, eating his lunch high on the top of the span. It was she who made us feel the breathless height of the structure and the relative puniness of the humans who had built it. Or if Dad pointed out a tree that had been bent and gnarled, it was Mother who made us sense how the wind, eating against the tree in the endless passing of time, had made its own relentless mark.

