Merely gathering knowledge may become the most useless work a man can do. What can you do to help and heal the world? That is the educational test.

Knowledge-full, unfettered knowledge of its own heritage, of freedom's enemies, of the whole world of men and ideas-this knowledge is a free people's surest strength.

It [International Yoga Day] is a reflection of the largest knowledge based peoples' movement the world has ever seen.

Power comes not from knowledge kept but from knowledge shared.

Books are infinite in number and time is short. The secret of knowledge is to take what is essential. Take that and try to live up to it.

Knowledge inspires courage. I'm not sceptical but I'd sooner know than believe.