Who said this?
One of the greatest challenges in my life is the struggle to abstain from premarital sex. It is not easy. Nor is it supposed to be. The struggle to abstain from sexual activity until we are married is part of the greater struggle to attain a spirituality that is detached from the selfish desires of our bodies and minds. It is only by purging our ego that we may move away from our own mean personal vanity, and do good to others.
answer here.