<textarea cols='60' rows='8'>This is my statement one.
This is my statement2</textarea>
Fiddle showing that it works: http://jsfiddle.net/trott/5vu28/.
If you really want this to be on a single line in the source file, you could insert the HTML character references for a line feed and a carriage return as shown in the answer from @Bakudan:
<textarea cols='60' rows='8'>This is my statement one. This is my statement2</textarea>
_x000D_