Bertrand Russell on the reliability of commonly held views

The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd; indeed in view of the silliness of the majority of mankind, a widespread belief is more likely to be foolish than sensible.

Bertrand Russell

Woody Allen's existential philosophy

Life is full of misery, loneliness, and suffering - and it's all over much too soon.

Woody Allen

Einstein on the difference between an intellectual and a genius

Intellectuals solve problems, geniuses prevent them. 

Albert Einstein

Here are some other Einstein quotes

And here is the story of the man

Zig Zaglar on how to get everything you want in life

You can get everything in life you want if you will just help enough other people  get what they want

Zig Zaglar

Aaron T. Beck on trust

"Don't trust me, test me." . Aaron T. Beck

Marcus Aurelius on what life is

Our Life is what our thoughts make of it. (Marcus Aurelius)

JK Rowling on the route to personal happiness

So given a Time Turner, I would tell my 21-year-old self that personal happiness lies in knowing that life is not a check-list of acquisition or achievement. Your qualifications, your CV, are not your life, though you will meet many people of my age and older who confuse the two. Life is difficult, and complicated, and beyond anyone’s total control, and the humility to know that will enable you to survive its vicissitudes.
JK Rowling http://harvardmagazine.com/commencement/the-fringe-benefits-failure-the-importance-imagination 

How often should I meditate?

Half an hours meditation each day is essential, except when you are busy. Then a full hour is needed
(St Francis de Sales, 1567-1622)

Epicurus on informed desire-satisfaction

71. Question each of your desires: “What will happen to me if that which this desire seeks is achieved, and what if it is not?”
Vatican Sayings

Is morality objective? James Rachels' view

A truth in ethics is a conclusion backed by reasons. The “correct” answer to a moral question is simply the answer that has the weight of reason on its side. Such truths are objective in the sense that they are true independently of what we might want or think. We cannot make something good or bad just by wishing it to be so because we cannot merely will that the weight of reason be on its side or against it. And this also explains our fallibility: We can be wrong about what is good or bad because we can be wrong about what reason commends.

Aristotle on the benefit of examining the nature of the good life

 Will not the knowledge of [the good] , then, have a great influence on life? Shall we not, like archers who have a mark to aim at, be more likely to hit upon what is right? If so, we must try, in outline at least, to determine what it is ...
Aristotle, Nicomachean Ethics, Book 1, Chapter 2

Derek Parfit's Optimism about the future of Ethics

[In the long-term future,] there could be higher achievements in all of the Arts and Sciences. But the progress could be greatest in what is now the least advanced of these Arts or Sciences. This, I have claimed, is Non-Religious Ethics. Belief in God, or in many gods, prevented the free development of moral reasoning. Disbelief in God, openly admitted by a majority, is a recent event, not yet completed. Because this event is so recent, Non-Religious Ethics is at a very early stage. We cannot yet predict whether, as in Mathematics, we will all reach agreement. Since we cannot know how Ethics will develop, it is not irrational to have high hopes.

-- Derek Parfit, Reasons and Persons, pp.453-454.