In science, the best precept is to alter and exchange our ideas as fast as science moves ahead.

It is what we know already that often prevents us from learning.

The experimenter who does not know what he is looking for will not understand what he finds.

When we meet a fact which contradicts a prevailing theory, we must accept the fact and abandon the theory, even when the theory is supported by great names and generally accepted.

Man can learn nothing unless he proceeds from the known to the unknown.

The terrain is everything; the germ is nothing.

Art is 'I'; science is 'we'.

A fact in itself is nothing. It is valuable only for the idea attached to it, or for the proof which it furnishes.

Those who do not know the torment of the unknown cannot have the joy of discovery.

Science increases our power in proportion as it lowers our pride.

All the vital mechanisms, varied as they are, have only one object, that of preserving constant the conditions of life in the internal environment.

After a certain high level of technical skill is achieved science and art tend to coalesce in aesthetics, plasticity, and form. The greatest scientists are artists as well.

Whatever the era...one thing will never change: Fathers and mothers, if you have children, they must come first.

I'm not the new kid on the block anymore. Writers always use the phrase "aging rocker," and I'm like, "What other option do I have?" You're either aging or you're dead.

I suppose I am reluctant about being any sort of 'star' and I didn't particularly want to be portrayed as one.

Nothing perhaps has so retarded the reception of the higher conclusions of Geology among men in general, as ... [the] instinctive parsimony of the human mind in matters where time is concerned.

The Round-Up is a wonderful community celebration, and I greatly enjoy the chance to visit with residents and see so many families enjoying the festivities offered throughout the week.

The weight that hangs upon our eyelids - is of lead.

There is no terra incognito left.

As worldly thoughts diminish, thoughts of God increase. Normally, the mind is all the time desiring these worldly things. As the desires are cut out one by one, the peace becomes stronger.

You know, I would date, if I could find a man worth shaving my legs for. (Grace)