(give sb) moral support: (give sb) your friendship, encouragement, approval, etc. rather than financial or practical support. (給某人)道義上的支持,精神支持

Will you stay and give me some moral support while I explain to him why I'm late?

我向他解釋遲到的原因時,你能否留下來,給我一些道義上的支持?

Your moral support alone isn't enough. We need money to fund this cause.

你僅僅從道義上聲援是不夠的,我們需要錢為這項事業提供資金.

(try to) run before you can walk: try to do sth that is difficult before you have succeeded in doing sth easy 還不會走就想跑;急于求成

The important thing about cooking is not to try to run before you can walk. Get the basics right and the rest will follow.
烹調時最重要的就是不要急于求成.把最基本的幾手學會了,剩下的就容易了.