我们必须保持警惕，坚决与一切内外敌人作斗争。
We must be vigilant and resolutely fight against all enemies, both internal and external.
It is in the thirties that we want friends. In the forties we know they won't save us any more than love did.
人比自己想象的要坚强。只是没有意识到这种坚强。
If knowledge can create problems, it is not through ignorance that we can solve them.
预测未来的最好方法就是创造未来。