The primary cause of unhappiness is never thesituation but your thoughts about it.
人生短暂如白马过隙,若不及时享受生活,年老时只能空自悲伤。
 The last time I was intimidated was when I was 6 years old in karate class.
The essence of science lies in its relentless pursuit of truth through observation, experimentation, and reasoning.