But what sin is to the moralist and crime to the jurist so to the scientific man is ignorance.

The pure air and dazzling snow belong to things beyond the reach of all personal feeling, almost beyond the reach of life.

On our plane knowledge and ignorance are the immemorial adversaries.

Four circles to the kissing come, The smaller are the benter. The bend is just the inverse of The distance from the centre. Though their intrigue left Euclid dumb There's now no need for rule of thumb. Since zero bend's a dead straight line And concave bends have minus sign, The sum of squares of all four bends Is half the square of their sum.

The whole profit of the issuance of money has provided the capital of the great banking business as it exists today.

The energy available for each individual man is his income, and the philosophy which can teach him to be content with penury should be capable of teaching him also the uses of wealth.

[The blame for the future 'plight of civilization] must rest on scientific men, equally with others, for being incapable of accepting the responsibility for the profound social upheavals which their own work primarily has brought about in human relationships.

The history of man is dominated by, and reflects, the amount of available energy

The dropping of the Atomic Bomb is a very deep problem... Instead of commemorating Hiroshima we should celebrate... man's triumph over the problem [of transmutation], and not its first misuse by politicians and military authorities.

Scientific men can hardly escape the charge of ignorance with regard to the precise effect of the impact of modern science upon the mode of living of the people and upon their civilisation.

It is curious to reflect, for example, upon the remarkable legend of the Philosopher's Stone, one of the oldest and most universal beliefs, the origin of which, however far back we penetrate into the records of the past, we do not probably trace its real source.

An inexplicable fact is infinitely preferable to an incomprehensible mystery.

[The human control of atomic energy could] virtually provide anyone who wanted it with a private sun of his own.

An honest money system is the only alternative.

Nature is in austere mood, even terrifying, withal majestically beautiful.

Man cannot influence in this respect the atomic forces of Nature.