1. Knowledge is power
Meaning: The more someone knows, the more equipped that person is
E.g. Knowledge is power. If you know something about the past, it may help you to anticipate the future.
2. Learn the ropes
Meaning : To learn or understand the basic details of how todo or perform a job, task, or activity.
E.g. We have a few high-priority projects we need to get done now, so you'll need to learn the ropes on your own.
3. Can’t make heads or tails of
Meaning : Failing to understand or confused about something.
E.g. I've been working with the new software for hours, but I still can't make heads or tails out of it.
4. Burning the midnight oil, pull an all-nighter
Meaning: Used by students to indicate late night/all night studies.
E.g. I'm going to have to pull an all-nighter if I'm going to get this term paper done in time for school tomorrow.
5. Know something backwards and forwards
Meaning: To be an expert or intimately familiar with something
E.g. I've read this book so many times, I know it backwards.
6. Doing your homework
Meaning: Literally, to complete school work that has beenassigned to be done at home.
E.g. You can't watch any more television until you do your homework!
7. Under one’s belt
Meaning: Safely or satisfactorily achieved, experienced, or acquired.
E.g. He now has almost a year as minister under his belt
8. Two heads are better than one.
Meaning: Two people working together have a betterchance of solving a problem than one person working alone.
E.g. Come over here and help me balance my check book.Two heads are better than one.
9. Pick his brain
Meaning: To obtain ideas or information from someone.
E.g. You should pick John's brain sometime; he knows all about car engines.
10. Great minds think alike
Meaning: Used when they have the same idea as someone else,to show that they think they are both clever.
E.g. I hear you gave Emma the same present as me — great minds think alike!
11. As far as anyone knows
Meaning: to the limits of anyone's knowledge.
E.g. As far as anyone knows,this is the last of the great herds of buffalo.
12. To the best of your belief/knowledge
Meaning: As far as you know
E.g. He never made a will, to the best of my knowledge.