梦寐以求

mèngmèiyǐqiú

[long-cherished; crave sth.so that one even dreams about it; dream wistfully] 在睡觉做梦时都在寻求, 形容心情迫切, 强烈追求

这一切, 也正是鲁迅所梦寐以求并终生为之奋斗的!