what does the phrase “It takes 20 years to build a reputation and five minutes to ruin it. If you think about that, you’ll do things differently.” mean

It takes 20 years to build a reputation and five minutes to ruin it. If you think about that, you'll do things differently.” Here, Buffett says that anyone's reputation can quickly take a hit and to always act with integrity. Otherwise, a whole career can be ruined easily no matter the effort over the years.