The answer is I will not try anything unless I have learned it,
A bit contradictory I reckon...
You don't know what you don't know...and often we don't know until we open ourselves up to learning what we don't know.
To walk the cutting edge of time is to realize 'we don't know'
so to say you must know before you participate is a bit perplexing to me....
thank you for your attention to me, in fact I am also still confused, but I will try as much as possible, once again thanks for the correction, and sorry maybe my language is still a lot of shortcomings.your comment can help me, and I still expect your care, thanks.@worldclassplayer