SB 3.31.33

Those who are too much addicted to sex life cannot understand the purpose of Absolute Truth, neither they can be clean in their habits, and what to speak of showing mercy to others. They cannot become…, remain grave, and they have no interest in the ultimate goal of life. The ultimate goal of life is Krsna, or Visnu; but these people who are addicted to sex life, they cannot understand that ult..., that their ultimate interest is Krsna consciousness, and such people have no sense of decency. Even in public street or public park they embrace each other just like cats and dogs and they pass on in the name of love-making. In the name of love-making they are shameless and just like cats and dogs. Such unfortunate creature can never become materially prosperous also. Behavior like cats and dogs keeps them in the position of cats and dogs. They cannot improve any material condition, what to speak of becoming famous man. Such foolish persons, however they may show the so-called practice of yoga, they are unable to control the senses and mind thereof, although the real purpose of yoga practice is to control the sense and the mind. Such people can have no opulence in their life, or in one word they are very much unfortunate.