To do a great right do a little wrong.
Nature is not human-hearted.
I've learned that even when I have pains, I don't have to be one.
There's no advantage to hurrying through life.
In order to seek truth, it is necessary once in the course of our life to doubt, as far as possible, of all things.
There are two things a person should never be angry at, what they can help, and what they cannot.
Life is either a daring adventure or nothing. Security is mostly a superstition. It does not exist in nature.
We all learn lessons in life. Some stick, some don't. I have always learned more from rejection and failure than from acceptance and success.
Not all things are to be discovered; many are better concealed.
To one extent, if you've seen one city slum, you've seen them all.
Life is made up of marble and mud.
You never know what life is like, until you have lived it.
Wrinkles should merely indicate where the smiles have been.
Life is not divided into semesters. You don't get summers off and very few employers are interested in helping you find yourself.
All my life I have tried to pluck a thistle and plant a flower wherever the flower would grow in thought and mind.
Today, more than ever before, life must be characterized by a sense of Universal responsibility, not only nation to nation and human to human, but also human to other forms of life.
Whatever relationships you have attracted in your life at this moment, are precisely the ones you need in your life at this moment. There is a hidden meaning behind all events, and this hidden meaning is serving your own evolution.
Life has a certain flavour for those who have fought and risked all that the sheltered and protected can never experience.
The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil, no good, nothing but blind, pitiless indifference
Doing nothing is happiness for children and misery for old men.
The young people think the old people are fools - but the old people know the young people are fools.