Robert A. Heinlein Quote

Humans hardly ever learn from the experience of others. They learn - when they do, which isn't often - on their own, the hard way.


Time Enough for Love (1973)


Humans hardly ever learn from the experience of others. They learn - when they do, which isn't often - on their own, the hard way.

Humans hardly ever learn from the experience of others. They learn - when they do, which isn't often - on their own, the hard way.

Humans hardly ever learn from the experience of others. They learn - when they do, which isn't often - on their own, the hard way.

Humans hardly ever learn from the experience of others. They learn - when they do, which isn't often - on their own, the hard way.