If you break your neck, if you have nothing to eat, if your house is on fire, then you got a problem. Everything else is inconvenience.
To cherish what remains of the Earth and to foster its renewal is our only legitimate hope of survival.
Science is the most reliable guide for civilization, for life, for success in the world. Searching a guide other than the science is meaning carelessness, ignorance and heresy.
Life belongs to the living, and he who lives must be prepared for changes
Our life always expresses the result of our dominant thoughts.
Life is like playing a violin solo in public and learning the instrument as one goes on.
Pain don't hurt.
Life shrinks or expands in proportion to one's courage.
Speed and efficiency do not always increase the quality of life.
If you want a happy ending, that depends, of course, on where you stop your story.
The doctor of the future will give no medicine, but will interest her or his patients in the care of the human frame, in a proper diet, and in the cause and prevention of disease.
Freedom would be not to choose between black and white but to abjure such prescribed choices.
There is no worse bitterness than to reach the end of your life and realized you have not lived.
Life is like music, it must be composed by ear, feeling and instinct, not by rule.
Is it progress if a cannibal uses a fork?
Insanity in individuals is rare - but in groups, parties, nations, and epochs, it is the rule.
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
Losing your way on a journey is unfortunate. But, losing your reason for the journey is a fate more cruel.
It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change.
There are two tragedies in life. One is to lose your heart's desire. The other is to gain it.
Life is not divided into semesters. You don't get summers off and very few employers are interested in helping you find yourself.