Man masters nature not by force but by understandi...

Every animal leaves traces of what it was man alone leaves traces of what he created.

Man is unique not because he does science, and his is unique not because he does art, but because science and art equally are expressions of his marvelous plasticity of mind.

You will die but the carbon will not its career does not end with you. It will return to the soil, and there a plant may take it up again in time, sending it once more on a cycle of plant and animal life.

Youth is the gift of nature, but age is a work of art.

He who is of calm and happy nature will hardly feel the pressure of age, but to him who is of an opposite disposition youth and age are equally a burden.

The stars shall fade away, the sun himself Grow dim with age, and nature sink in years, But thou shalt flourish in immortal youth, Unhurt amidst the wars of elements, The wrecks of matter, and the crush of worlds.

To be happy, we must be true to nature and carry our age along with us.

The credit of advancing science has always been due to individuals and never to the age.

Science cannot tell theology how to construct a doctrine of creation, but you can't construct a doctrine of creation without taking account of the age of the universe and the evolutionary character of cosmic history.

The older generation had greater respect for land than science. But we live in an age when science, more than soil, has become the provider of growth and abundance. Living just on the land creates loneliness in an age of globality.

Wisdom alone is the science of other sciences.