You cant roll a wheel while it is laying on the ground, you have to lift it up and push. it is that push which takes all your energy, once rolling you just need to push lightly. Same is in business here that push is called loss, then you break even in other words you earn what you invested plus your losses then comes profit. It does not come straight away,every company first make loss. Success is a bitter pill which turn sweet with time and hard work. It a like brass more you polish more it shines.