1. Where there is opposition, there are rebellions.
2. Where there is contact, there is friction.
3. Where there are women, there are jealousy and suspicion.
A: I'm afraid I can't complete my paper on time.
B: What happened?
A: I keep on meeting with difficulties in the experiment. I can hardly go on.
B: Where there are difficulties, there are ways to get over them. Hold on!