Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less

All my life through, the new sights of nature made me rejoice like a child

One never notices what has been done; one can only see what remains to be done

In science, we must be interested in things, not in persons

You cannot hope to build a better world without improving the individuals. To that end, each of us must work for our own improvement and, at the same time, share a general responsibility for all humanity, our particular duty being to aid those to who

I am one of those who think like Nobel, that humanity will draw more good than evil from new discoveries

After all, science is essentially international, and it is only through lack of the historical sense that national qualities have been attributed to it

I was taught that the way of progress was neither swift nor easy.

Life is not easy for any of us. But what of that? We must have perseverance and above all confidence in ourselves. We must believe that we are gifted for something, and that this thing, at whatever cost, must be attained

Be less curious about people and more curious about ideas

Humanity needs practical men, who get the most out of their work, and, without forgetting the general good, safeguard their own interests. But humanity also needs dreamers, for whom the disinterested development of an enterprise is so captivating that it becomes impossible for them to devote their care to their own material profit.