He that loves law will get his fill.

The saying warns that someone drawn to lawsuits, disputes, or legal procedure is unlikely to lack involvement in them. Their appetite for legal contention brings an ample, perhaps burdensome, share of it.

It carries an ironic sense of satisfaction: pursuing law eagerly can produce more legal business than one truly wants. “Get his fill” suggests being fully supplied, not necessarily rewarded or pleased.

Use it as a wry comment on someone who repeatedly turns conflicts into legal matters or takes excessive interest in litigation. It can caution that seeking formal disputes invites further entanglement; avoid it where “law” must be distinguished precisely between legal affairs generally and litigation.