61.   But a generous nature was of no avail in dealing with United States and British Customs.

62.   But nature is also generous.

63.   But nature is not nearly so tidy.

64.   But nature is harder to reproduce.

65.   But nature is more promiscuous, Strominger said.

66.   But nature is not static, say critics of the plan.

67.   But nature is only a part of it.

68.   But nature has been striking back ever since.

69.   But nature was her first love.

70.   But nature is not human creation.