τοῦ δὲ πολέμου οἱ καιροὶ οὐ μενετοί → in war, opportunities won't wait | the chances of war will not wait (Thucydides 1.142.2)
Use P. and V. δῆμος, ὁ, ὄχλος, ὁ, πλῆθος, τό, οἱ πολλοί.