In the quantum world, observing something changes it. This is not a limitation of our technology, but a fundamental property of nature.
林肯的政敌批评林肯有“两面三刀”时的幽默回应。因为就政治人物而言,林肯的长相极不讨喜,像个野猴
A company's values should be visible in every product, every decision, and every interaction.
The mind is a system of interacting sensations.