IDIOMS

After all, tomorrow is another day. Margaret Mitchell

1. used other than as an idiom: see after,‎ all.
* After all his preaching about humility, it turns out he is as proud as any of us.
2. (idiomatic) Anyway, in any case; indicates a statement is true regardless of other considerations; used to reinforce or explain a point.
* After all, they never come home for Christmas.
*Of course he won't give you credit. After all, his first and last concern is his company's profit margin.
3. (idiomatic) In the end, however; used in referring to something that was believed to be the case, but is not; or to an outcome that is not what was expected or predicted.
* They won't be coming home for Christmas after all.

You have to think anyway, why not think big?

Be ambitious, as in There's no point in moving to a place the same size; we have to think big and plan for expansion 2. to form plans that are extremely difficult to achieve She could never have imagined owning her own business, but her husband encouraged Janice to think big.