Half of science is putting forth the right questions.

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.

One cannot have a future if he doesn’t serve the one and only God

You can start on a clean slate or make excuses, but you can't do both.

I think children love reading, and they will make time for it if we put the right books into their hands. And I hope I get the chance to keep being one of the people that writes them.

Timing's mighty important. In cooking, in life, in love. If the timing goes wrong, you've got to start over. Do it right.

Businessmen, they drink my wine, plowmen dig my earth. None of them along the line know what any of it is worth.

You think everybody's paying attention to what you're doing. No, they're paying attention to what's interesting to them.

Good design is long-lasting! It avoids being fashionable and therefore never appears antiquated.

Do fewer things and do them well. Focus on the things only you can do. Do the important things which must be done now.

You wonder why I only talk about my personal life. But that's all I've ever done.

We have now reached a level where we should be even more ambitious. We should focus on more tangible mechanisms and outcomes. Make BRICS a platform of Impact.