What is the highest level of stop loss?

Among the valuable and conscientious words said by many real bigwigs in the investment world, there is one sentence that appears very frequently.

"Use your pocket money to invest"

Some bigwigs even said it several times in different ways, for example, Peter Lynch also said:

Investment is a jerk, you should buy a house first

You can't even do your job well and still invest, get out of here

And so on.

What does this sentence mean?

What this sentence actually wants to say is:

Every penny you invest, you must treat it as if it is gone.

In other words, if you really feel that you have too much money and you can't spend it anyway, you can invest this little money.

Then, when investing, just treat it as throwing it into the Huangpu River and forget about it.

That is: the highest level of stop loss - never stop loss.