There is only one foundation that can be laid, that is Christ Jesus

St Paul tells us that without faith it is impossible to please God. Our Lord Himself said to the crowds, this is working for God, to believe in the One whom He has sent. So faith is necessary for our salvation. Yet faith alone is insufficient, works also are necessary, that is to live the virtuous life. And again St. Paul tells us that there are some that profess Christ with their lips but deny Him with their deeds.