A clever person solves a problem. A wise person avoids it.
Cleverness is skill at fixing trouble once it has arrived, while wisdom is the foresight to keep trouble from arriving at all. The quote draws a line between two kinds of intelligence: the quick, inventive kind that thrives under pressure, and the quieter kind that looks ahead and changes course early. The wise person isn't dodging responsibility. They see where a path is likely to lead and choose a different one.
The idea echoes old traditions, from the Daoist preference for acting before a difficulty takes shape to the Stoic habit of imagining what might go wrong in advance. It is close kin to the familiar saying that an ounce of prevention is worth a pound of cure. As for Einstein, there is no solid evidence he ever said it, and it is usually treated as a doubtful attribution.
In everyday life, imagine someone who keeps ending up in a last-minute panic over bills. The clever response is to juggle accounts and find a workaround each month. The wise one is to set up an automatic transfer on payday, so the crisis never comes.