Something need to be done, for one's sake. From. Now.

我如今什么也不是，以后也什么也不是。

I'll leave it to you to develop a more secure algorithm, this one's just for example's sake.

您可以开发更安全的算法，当前这个算法只是作为一个例子。

Don't be silly. I won't give up you for bygones' sake. Everyone has one's history.

别再傻了，我决不会因为过去的事儿跟你分手，谁没有历史呢？

Therefore, for the sake of Dharma that liberates self and others, why hesitate to sacrifice one's life!

为了令自他解脱于轮回的精妙佛法，舍弃生命又何足惜！

It is for the sake of more appropriate requirement for other people's honesty and more reasonable practice of one's own honesty to realize its limits in depth.

深入认识诚信的限度，是为了更适当地要求诚信和更合理地践行诚信。