What is the best piece of advice you've ever been given?

I'm compiling a list of great advice, would love your input!





Thanks, Liz : + )What is the best piece of advice you've ever been given?
There isn't one which stands out, so I'll give you a few:





';Never ascribe to malice that which may be better explained by stupidity';





';Always look for alternative explanations';





';Do not multiply entities needlessly';





';Go for it';





';Never write down your passwords, PIN codes or any other security information';





';Be alert for pickpockets and thieves of all kinds';





';Work on the assumption every other road user is a complete idiot';





';Always park in busy well-lit places';





';Park next to expensive well-cared for vehicles rather than cheap battered ones';





';Never keep cooked meat longer than 3 days';