Two wrongs don't make a right. | someone done sth bad to you, trying to get revenge will only make thing worse |
The pen is mighter than the sword. | ideas and words is more effective than trying to force people to do what you want |
When in Rome, do as the Romas. | act the way that the people around you are acting |
The squeaky wheel gets th grease. | you can get better service if you complain about sth |
When the going gets tough, the tough get going. | strong people don't give up when they come across challenges - the work harder |
No man is an island. | everyone needs help from other people |