Take a text file

How can I’ have take the text file in my hd ???

ex:


tell application "Finder"
	set my_folder_path to (folder of (path to me)) as string
	set thepath to my_folder_path & "ConstantsList"
	set texto to file (thepath)
	display dialog texto as string
end tell


I’m have on file text in my hd and i’m need take the contents and put in variable.
Thanks

Carlos

read alias "path:to:file"