乐观不仅仅是一种特质;它是一种可以培养的技能。
Optimism is not just a trait; it's a skill that can be cultivated.
Everyone thinks of changing the world, but no one thinks of changing himself.
The psychologist must avoid all forms of mental chemistry.
没有斗争就没有权利。
领导力是关于愿景和激励他人的能力。
质量从来不是偶然的;它始终是智慧努力的结果。