Ernst Haeckel

The cell is the true elementary organism.

The most important result of the theory of evolution is the proof that man is not a special creation, but a product of natural development.

The more I study nature, the more I am amazed at the art of the Creator.

The human soul is nothing more than the sum of the functions of the brain.

The organism is a machine, but a living machine.

The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.

The cell is the true elementary organism, the ultimate unit of life.

Monism is the conviction that there is but one substance in the universe, which is simultaneously God and nature.

The human soul is nothing but the sum of the cerebral functions.

The 'soul' of man is no more immortal than the soul of the ape or the dog.

The whole of nature is a living unity, and man is but a small part of it.

The greatest riddle of the universe is not the origin of life, but the origin of consciousness.

There is no supernatural, only the natural, which we do not yet understand.

Beauty is the harmony of form and color, the perfect adaptation of means to end.

The universe is an infinite, eternal, and ever-changing process of development.

Every organism is a masterpiece of nature, a living work of art.

Man is a product of nature, not a special creation.

The soul is not a distinct entity, but a function of the brain.

Death is a natural and necessary part of the cycle of life.

The meaning of life is to live it to the fullest, to experience and to learn.