Imagination does not become great until human beings, given the courage and the strength, use it to create.

We especially need imagination in science. It is not all mathematics, nor all logic, but it is somewhat beauty and poetry.

Man is capable of every great heroism; it was man who found a means of conquering the formidable obstacles of his environment, establishing himself lord of the earth, and laying the foundations of civilization.

We cannot create observers by saying 'observe', but by giving them the power and the means for this observation and these means are procured through education of the senses.

The development of language is part of the development of the personality, for words are the natural means of expressing thoughts and establishing understanding between people.

Free the child's potential, and you will transform him into the world.