The only limit to our realization of tomorrow will be our doubts of today.
我似乎總是想以最節(jié)能的方式，用自然界里最平常的東西來造各種東西。
友情是兩顆心靈寄宿在兩個(gè)身體中。
Small actions, when multiplied by millions of users, can change the world.
The best investment you can make is in yourself.