Lǐ qīng, qíngyì zhòng.*

禮輕情意重。

Lit The gift is light, [but] the feeling is profound.

Fig It's nothing much, but it's the thought that counts.

Note [As a chengyu: lǐ qīng yì zhòng; see also qiān lǐ sòng émáo below.]

Topics chengyu COURTESY FEELINGS GIFTS THOUGHTS