Christmas... is not an external event at all, but a piece of one's home that one carries in one's heart.

There can be no happiness if the things we believe in are different from the things we do.

To awaken quite alone in a strange town is one of the pleasantest sensations in the world.

Absence is one of the most useful ingredients of family life, and to dose it rightly is an art like any other.

Curiosity is the one thing invincible in Nature.

Few are the giants of the soul who actually feel that the human race is their family circle.

Pain and fear and hunger are effects of causes which can be foreseen and known: but sorrow is a debt which someone else makes for us.

The great and almost only comfort about being a woman is that one can always pretend to be more stupid than one is and no one is surprised.

If we are strong, and have faith in life and its richness of surprises, and hold the rudder steadily in our hands. I am sure we will sail into quiet and pleasent waters for our old age.

An external electric field, meeting it and passing through it, affects the negative as much as the positive quanta of the atom, and pushes the former to one side, and the latter in the other direction.

It is more likely that more than a century will pass before we know the structure of the chemical atoms as thoroughly as we do our solar system.

The emitters of the spectral series are without exception single atoms, not compounds of atoms.

The movement of the emitters of the spectral lines may be deduced on the basis of the Doppler principle.

The question of the composition of perceptible objects is one which already occupied the mind of the ancient Greeks.

A beam of luminous hydrogen canal rays has, owing to its velocity, exactly the same direction as that of the electric field in which it may be made to move.

Along a series of lines running from longer to shorter wavelengths the effect of the electric field becomes greater as the serial numbers increase - that is, as the wavelength decreases.

At the head of these new discoveries and insights comes the establishment of the facts that electricity is composed of discrete particles of equal size, or quanta, and that light is an electromagnetic wave motion.

By allowing the positive ions to pass through an electric field and thus giving them a certain velocity, it is possible to distinguish them from the neutral, stationary atoms.

By recognizing that the chemical atom is composed of single separable electric quanta, humanity has taken a great step forward in the investigation of the natural world.

For under certain conditions the chemical atoms emit light waves of a specific length or oscillation frequency - their familiar characteristic spectra - and these can come in the form of electromagnetic waves only from accelerated electric quanta.