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.

I've been quite fascinated by the relative insignificance of human existence, the shortness of life. We might as well be a letter in a word in a sentence on a page in a book in a library in a city in one country in this enormous universe! And that kind of fear and insignificance has kept me awake at night.

I don't like characters who are either good or bad. I just don't experience that in life, so my writing hasn't evolved that way.

Winning 'The Apprentice' changed my life in ways I could never have imagined. It has been an amazing experience working for Donald Trump and I am very grateful for the whole opportunity.

Joy, rather than happiness, is the goal of life, for joy is the emotion which accompanies our fulfilling our natures as human beings. It is based on the experience of one's identity as a being of worth and dignity.