float in the mind

We do not believe that a tide rises and falls behind every man which can float the British Empire like a chip, if he should ever harbor it in his mind.

我们不知道每一个人背后都有潮起潮落，这浪潮可以把大英帝国像小木片一样浮起来，如果他有决心记住这个。

In the water, both body and mind have to work together to move forward or simply float.

在水里，身体和头脑不得不一起工作来使自己向前游或者简单地漂浮在水面上。

Their words float in the air until my mind finally acknowledges that I need to give some kind of response.

听而不闻。朋友的言语在空气中飘浮。直至我意识到必须给予反应。