A quick note on where this one comes from, since it's worth knowing: this line isn't from Einstein's own published writing, but is recalled by Ernst Straus, his longtime research assistant, in the scholarly collection Einstein: A Centenary Volume. That's a credible chain — someone who worked closely with him, in a serious academic source — even if it's secondhand rather than something Einstein wrote down himself.

The advice itself is genuinely bracing, and a little uncomfortable, which is usually a sign it's worth taking seriously. Einstein isn't saying people and possessions don't matter. He's warning against making them the foundation your happiness stands on. People change, leave, and die. Objects break, fade, or lose their shine. Anything you tie your whole happiness to that can be lost will, sooner or later, take your happiness down with it when it goes.

A goal is different in kind. It's not a fixed thing you either have or don't — it's a direction, something you move toward. Tie your happiness to a goal and you're tying it to your own ongoing effort and growth, which stays available to you regardless of what else changes around you. The goal itself might shift or even go unmet, but the act of moving toward something meaningful is a renewable source, not a fragile one.

It's worth pairing this with common sense rather than taking it too far — love and connection are core to a good life, and Einstein himself was deeply devoted to people he cared about. The point isn't to withdraw from others. It's to notice the difference between loving people freely and quietly making them responsible for your happiness. Anchor that instead in something you're building, and you get to keep both the goal and the people, without asking either to carry more than they should.