Every scientific discovery should be measured by its contribution to human welfare.

The chief beauty about time is that you cannot waste it in advance. The next year, the next day, the next hour are lying ready for you, as perfect, as unspoiled, as if you had never wasted or misapplied a single moment in all your life.

The most successful businesses solve problems people didn't even know they had.

做出伟大工作的唯一方法就是热爱你所做的事。