If in other sciences we should arrive at certainty without doubt and truth without error, it behooves us to place the foundations of knowledge in mathematics.

It is impossible to love and to be wise.

Silence is the sleep that nourishes wisdom.

Begin doing what you want to do now. We are not living in eternity. We have only this moment, sparkling like a star in our hand - and melting like a snowflake.

If a man will begin with certainties, he shall end in doubts, but if he will content to begin with doubts, he shall end in certainties.

All rising to great places is by a winding stair.

It's not what we profess but what we practice that gives us integrity.

Man prefers to believe what he prefers to be true.

There is a difference between happiness and wisdom: he that thinks himself the happiest man is really so; but he that thinks himself the wisest is generally the greatest fool.

Read not to contradict and confute, nor to believe and take for granted... but to weigh and consider.

Life is a marshmallow, easy to chew but hard to swallow.

sometime life is full of joy, and sometime life is full of pain and tears but we have to defeat it

Discouragement leads away from the right path, and accomplishes the devil’s desire for destruction

Winners learn from the past, live in the present, and lead into the future.

Where there's smoke around a conservative, there are journalists furiously rubbing two sticks together.

Man has not really vanquished Shamanism and its spooks till he possesses the strength to lay aside not only the belief in ghosts or in spirits, but also the belief in the spirit.

In Fleet Street, in Fleet Street, the People are so fleet, They barely touch the cobble-stones with their nimble feet!

We must pray without ceasing, in every occurrence and employment of our lives - that prayer which is rather a habit of lifting up the heart to God as in a constant communication with Him.

[The Many-worlds interpretation is the] only completely coherent approach to explaining both the contents of quantum mechanics and the appearance of the world.

If I read in a paper that somebody has said something about me, I'm going to take it with a pinch of salt; I really am!

I feel like people didn't understand where I was about to go. And a lot of people still don't.