Understanding the computational complexity of learning problems is essential for developing efficient algorithms.
饱食终日，宴乐无度，不就是白白地浪费了一天！轻举妄动、胡言乱语、不讲道理、放纵私欲，岂不是就是罪恶的一日！
不同的道路有时通向同一座城堡。
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。
Life is a series of choices, and every choice has a consequence.
当行动与言语一致时，信任就建立了。
Never confuse movement with action.