Science should serve humanity, not the other way around.
The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.
In the end, all we have are words.
释义：现在的贫富情况不能决定以后的穷富，将来的富裕或贫困情况还不能预知。
我们必须平衡短期需求和长期可持续性。
The only limit to our realization of tomorrow is our doubts of today.
Young people must equip themselves for life's duties and guard against its temptations.
我们必须立即行动，因为海洋的衰退是我们不能忽视的危机。