var charLimit = 250;
$(document).ready(function () {
    $("li.widget_stray_quotes q").each(function(){
        var me = $(this);
        if(me.text().length > charLimit){
            var link = document.createElement("a");
            link.href="#";
            link.innerHTML = "read more";
            var fullText = me.text();
            link.onclick = function(){
                $(this).parent().text(fullText);
                return false;
            }
            me.text(me.text().substr(0,charLimit)+"… ");
            me.append(link);
        }
    });
});