I thought I heard someone following me, and glancing round, I caught sight of a dark figure in the shadows.

我觉得我听到了有人跟随我的声音，便环视四周，发现黑暗中有一个人影。

youdao

Certainly, no all-round knowledge can be acquired merely by glancing this way and that and relying on hearsay.

东张西望，道听途说，绝然得不到什么完全的知识。

《新英汉大辞典》