Gravitation is not responsible for people falling in love. |

Reality is merely an illusion, albeit a very persistent one. |

Anyone who has never made a mistake has never tried anything new. |

The important thing is not to stop questioning. Curiosity has its own reason for existing. |

The secret to creativity is knowing how to hide your sources. |

If at first the idea is not absurd, then there is no hope for it. |

Any intelligent fool can make things bigger and more complex. It takes a touch of genius and a lot of courage to move in the opposite direction. |

Imagination is more important than knowledge. For knowledge is limited to all we now know and understand, while imagination embraces the entire world, and all there ever will be to know and understand. |

The pursuit of truth and beauty is a sphere of activity in which we are permitted to remain children all our lives. |

We cannot solve our problems with the same thinking we used when we created them. |

Happiness in intelligent people is the rarest thing I know. |

I never teach my pupils. I only attempt to provide the conditions in which they can learn. |