How can sparrows know the great ambitions of the swan?
Tips
usage
The standard collocations are 胸怀大志 (xiōnghuái dàzhì, to harbor great ambitions) and 立大志 (lì dàzhì, to set lofty goals). The second example above echoes a famous line from 《史记·陈涉世家》 about ambition the small-minded can't grasp.