No one likes those who are critical of everything, so we cannot be too picky.

没有人喜欢那些对一切事物都感到不满的人，所以我们不能太挑剔了。

One cannot be too careful in guarding Party and state secrets.

保守党和国家的机密，慎之又慎。

A driver cannot be too careful.

当司机的越小心越好。

One cannot be too careful.

怎么小心谨慎也不会过分。

You cannot be too careful.

再小心也不为过。