It is necessary to be a scientist to make a difference
to be a scientist 和 to make a difference在此句中分别充当什么成分?
sorry,可能是我打错了，原句应该是It is not necessary to be a scientist to make a difference.句中重点应该是侧重于表达要取得成就并不必要靠成为科学家来实现，如果认为to be a scientist 是真正主语,那和句意不是有冲突吗