But the watchful care of the parent is endless. The youth is never free from the danger of grating interference.

The philosophy of the wisest man that ever existed, is mainly derived from the act of introspection.

Soundness of understanding is connected with freedom of enquiry; consequently, opinion should, as far as public security will admit, be exempted from restraint.

Superior virtue must be the fruit of superior intelligence.

It's for scientists to lay out the data and lay out what they think, and then it's for the public to make up its own mind. We don't live in a priesthood where some small group imposes its views on other people - that's not the way that science works, and it's not the way a democratic society should work.

The most profound change that genetics brings about might not be scientific at all. It might be mental and even spiritual enrichment: a more expansive sense of who we humans are, existentially, and where we came from, and how we fit with other life on earth.

Science fiction writers have usually been very poor prognosticators of the future, either in literary or technological terms, and that's because we're all too human and, I think, have the tendency to see what we want to or, in the case of those more paranoid, what we fear.

The things you're passionate about and interested in, get experience with them by going deep on projects. I would encourage science projects, plays. Pursue science, math, writing, history - the 21st century demands a lot of cross-disciplinary thinking.