The typewriting machine, when played with expression, is not more annoying than the piano when played by a sister or near relations.

The brain is not a general-purpose computer but a collection of specialized circuits designed to solve specific adaptive problems.

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

In times of change, the ability to learn is far more important than the ability to know.

不要让恐惧阻止你做你想做的事。