The only limit to our realization of tomorrow will be our doubts of today.

It really matters whether people are working on generating clean energy or improving transportation or making the Internet work better and all those things. And small groups of people can have a really huge impact.

If you repeated what you did today 365 more times will you be where you want to be next year？

唯一的限制是你的思想。

O valor das coisas não está no tempo que elas duram, mas na intensidade com que acontecem. Por isso existem momentos inesquecíveis, coisas inexplicáveis e pessoas incomparáveis.