Sustainability isn't an option; it's a responsibility we owe to future generations.
科學(xué)的進(jìn)步依賴于新技術(shù)、新發(fā)現(xiàn)和新思想,可能按這個(gè)順序。
心理與物理之間的界限并不像我們通常認(rèn)為的那樣清晰。
"In the end, we will remember not the words of our enemies, but the silence of our friends."