Andrew Matthew is one of my favorite authors. I read one of his books "follow your hear" about 6 years ago and I loved it. The book is simple but full of wisdom. here is part of his book which comes handy for me right now.
This might mean:
You'll attend twenty interviews to get one job.
You'll interview forty people to find one good employee.
You'll talk to fifty people to sell one house, car, vacuum cleaner, insurance policy, idea.
And you might meet a hundred acquaintances to find one special friend...