1 + 0 = 1 but 1 + 1 > 2
That’s the “greater than” symbol: > It means better or more or more better. 2 is better than 1. But 1 + 1 is more than 2. One person working individually plus one person individually equals two people working individually. But two people working together is more than two people working apart.
I know, I know, since kindergarten, you learned that 1 + 1 = 2, but since kindergarten, things have improved even more.
More people bring different viewpoints and ideas, whereas an individual often only looks at a problem or issue from one perspective. Krishna Chandran via Quora
You know what you’re going to get by going it alone: your perspective (and only your perspective). You might be thinking, “Well, all I need is my perspective as it’s the right one.” See, you already need help because you think you’re right.