My Opinion

1) If you have ever count the resistors in a circuit board, you will find these components far outnumbered other electronics components such as transistors, Integrated Circuit, and so on.

2) This happens in life too. Everyday, we will face lots of obstacles (analogy to resistor in circuit). But, I am sure all these obstacles happen for a reason. They not only test our ability to move on despite great resistance, they also prevent us from running into big trouble. Just imagine there are no resistor in a electric circuit, the LED will easily get burned. So does our life. We can easily get into trouble if there are no rules and failures.