When a thing has been said and said well, have no scruple. Take it and copy it.
(Anatole France)

Man's mind stretched to a new idea never goes back to its original dimensions.
(Oliver Wendell Holmes)

In the sciences, we are now uniquely privileged to sit side by side with the giants on whose shoulders we stand.
(Gerald Holton)

There is one thing stronger than all the armies in the world; and that is an idea whose time has come.
(Victor Hugo)

If I have seen farther than others, it is because I was standing on the shoulders of giants.
(Isaac Newton)

If everybody is thinking alike, then somebody isn't thinking.
(George S. Patton, Jr.)

Truth often suffers more by the heat of its defenders than the arguments of its opposers.
(William Penn)

Every act of creation is first an act of destruction.
(Pablo Picasso)

If your daily life seems poor, do not blame it; blame yourself, tell yourself that you are not a poet enough to call forth its riches; for to the creator there is no poverty and no poor indifferent place.
(Rainer Maria Rilke)

Even if you're on the right track, you'll get run over if you just sit there.
(Will Rogers)

Do not fear to be eccentric in opinion, for every opinion now accepted was once eccentric.
(Bertrand Russell)