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

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

我向他解释迟到的原因时,你能否留下来,给我一些道义上的支持?

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

你仅仅从道义上声援是不够的,我们需要钱为这项事业提供资金.

(try to) run before you can walk: try to do sth that is difficult before you have succeeded in doing sth easy 还不会走就想跑;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.
烹调时最重要的就是不要急于求成.把最基本的几手学会了,剩下的就容易了.