I understand you don't want judicial philosophy changing with Presidents, but serving three times as long as a senator seems excessive to me. It's not like we don't have enough lawyers. The year the US Constitution was ratified, White Male life expectancy (because back then, that's all that mattered) was 38 years. The youngest ever justice was 32 when he joined the bench. I'll concede that most justices lived well beyond life expectancy, but there is a compelling argument that the framers didn't think anyone would be on the bench for more than six years or so. A term of ten years is plenty. I certainly wouldn't support any more than that.