Katharine Hepburn's quote is a pointer that life is not constantly easy. It is a suggestion that life has plenty of challenges and difficulties, which it is ultimately finite. The quote is a suggestion to maximize life, to appreciate the great moments and to learn from the bad. It is a reminder to live life to the max, to take risks, and to maximize the time we have. It is a reminder that life is valuable which it should be valued. The quote is a suggestion that life is hard, however that it is also lovely and worth living. It is a suggestion to take advantage of life, to value the excellent moments, and to learn from the bad.
"Life is life - whether in a cat, or dog or man. There is no difference there between a cat or a man. The idea of difference is a human conception for man's own advantage"