Using Special login by script

I think routeros is great but not exactly user friendly, please have patience if the question is silly.

I’ve connected a linux box by RS232 to a Routerboard, setup the special login as described in wiki, and accessing trought ssh serial@myrouterboard it works!

Now I need a little step over, I want to automate the access over serial from routerboard scripting.

In routeros terminal I can do:

/System ssh address=10.0.0.200 user=serial

then I get the device console and I can write:

 echo "If you look for perfection, you'll never be content."

how can I do this:

/System ssh address=10.0.0.200 user=serial command=":put \"If you look for perfection, you'll never be content.\""

It just echo locally the string not on the other side of tunnel :

If you look for perfection, you’ll never be content.
Welcome back!

It is possible or it isn’t?