Idiom: "(to) think big"
Definition:
to set high goals
Examples:
1) Why do you want to work for someone? Think big and run your own company.
2) Emma hopes to create a popular website to sell to Google. She’s always thinking big.
中文解释： http://www.youzienglish.com/main/idiom_of_the_day/to_think_big/cn/
