..if a special geometry has to be invented in order to account for a falling apple, even Newton might be appalled at the complications which would ensue when really difficult problems are tackled.

The properties which differentiate living matter from any kind of inorganic imitation may be instinctively felt, but can hardly be formulated without expert knowledge.

Any person without invincible prejudice who had the same experience would come to the same broad conclusion, viz., that things hitherto held impossible do actually occur.

Men of Science would do well to talk plain English. The most abstruse questions can very well be discussed in our own tongue ... I make a particular appeal to the botanists, who appear to delight in troublesome words.

There is a conservation of matter and of energy, there may be a conservation of life; or if not of life, of something which transcends life.

But although life is not energy, any more than it is matter, yet it directs energy and thereby controls arrangements of matter.

Death is not extinction. Neither the soul nor the body is extinguished or put out of existence.