Problems cannot be solved by thinking within the framework in which the problems were created.

Be a loner. That gives you time to wonder, to search for the truth. Have holy curiosity. Make your life worth living.

Understanding of our fellow human beings...becomes fruitful only when it is sustained by sympathetic feelings in joy and sorrow.

Reading, after a certain age, diverts the mind too much from its creative pursuits. Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

As to science, we may well define it for our purpose as "methodical thinking directed toward finding regulative connections between our sensual experiences".

One must take what nature gives as one finds it.

He who finds a thought that lets us a little deeper into the eternal mystery of nature has been granted great peace.