If we compare the two, Facebook is currently a superior place to market a product like Slide. Twitter is more like a general distribution agent. It's like broadcast radio.

The single most important top-level trend is the shift to mobile.

Ignore your mistakes. The number one thing to worry about is -Am I doing what I'm good at?

You can have successful teams where people hate but deeply respect each other; the opposite (love but not respect among team members) is a recipe for disaster.

Having a highly homogeneous background, education, values, preferences, etc, in the very early team is better than not - cuts down on time-wasting arguments.

The world is now awash in data and we can see consumers in a lot clearer ways.

We're all put on Earth for a limited amount of time. Am I using in a way that is great, or good enough, or wasteful?

The notion that diversity in an early team is important or good is completely wrong. You should try to make the early team as non-diverse as possible.

Being an entrepreneur is not about being in love with an idea, it's about being in love with running a company.

You can't get married to any one particular plan. That is the biggest lesson I learned at PayPal.

Facebook is so ubiquitous now that it's like another manifestation of the web itself.

A lot of pain that we are dealing with are really only THOUGHTS.

When I put on makeup, I'm not doing it to pander to antiquated patriarchal ideals of feminine beauty. I'm doing it because it makes mr feel good.

…falling in love is a state of mental misery which has a restricting, impoverishing, and paralyzing effect upon the development of our consciousness.

The labor of women in the house, certainly, enables men to produce more wealth than they otherwise could; and in this way women are economic factors in society. But so are horses.

I'm beginning to believe that anything I do to extend my life is just going to be outweighed by the agony of living it.

My father was also a principal of a school and mother was a curriculum advisor. Both were educators.

in a woman's womb. another chance. to make the world better.

Marriage is a tyranny, a mortification of man's natural instincts. Man needs a multiplicity of relationships.

If you can't say it simply and clearly, keep quiet, and keep working on it till you can.

If you're not in New York, you're camping out.