I never guess. It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.
人们不买你做什么,他们买你为什么做。
The only way to do great work is to love what you do. If you haven't found it yet, keep looking. Don't settle.
Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less.
The duty of a true patriot is to protect his country from its government.