"Youth life is the most precious life. Youth is the best time. The way in which you utilize this period will decide the nature of coming years that lie ahead of you".
"We are responsible for what we are, and whatever we wish ourselves to be, we have the power to make ourselves." -Swami Vivekananda.
http://www.divyajivan.org/articles/articles/adhyatma/vivekananda_youth.htm