本书详细讲解了二十几岁年轻人要面对的心理、日标、现实、行动、人际、思路、人脉、处世、说话、机遇、家庭、工作、健康等13个问题，提醒年轻人：人生只有一次，现在就要早知道，早定位；只有早行动，才能早成功。The book explains in detail 13 issues that young people in 20s are facing of psychology, target, reality, action, interpersonal relations, ideas, personal connections, attitude of life, speaking, opportunity, family, job and health. The author calls young people's attention to the following issue: we only live once, and the young should know it and make positions earl.. Early action results in immediate success.