Poo, ga di nne pedi mo sakeng

Two bulls can't stay in the same kraal.

What it means
Two bulls shut in one kraal will fight to the death. The proverb is used to say you can't have it both ways: faced with two options, you have to choose one.
Tswana · Southern Africa
Source and context
From: Tswana, Southern Africa
Source: Tswana (Botswana) oral-tradition proverb — "African Proverb of the Month," January 2000 (afriprov.tangaza.ac.ke)

The source explains it: you can't have it both ways. The wording of the meaning is ours.