Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution.

Somewhere, something incredible is waiting to be known.

Employ your time in improving yourself by other men's writings, so that you shall gain easily what others have labored hard for.

There is only one good, knowledge, and one evil, ignorance.

If you don't know jewelry, know the jeweller.

Really, Ischomachus, I am disposed to ask: "Does teaching consist in putting questions?" Indeed, the secret of your system has just this instant dawned upon me. I seem to see the principle in which you put your questions. You lead me through the field of my own knowledge, and then by pointing out analogies to what I know, persuade me that I really know some things which hitherto, as I believed, I had no knowledge of.

1. When trying to get the facts, I pretend that I am collecting this information not for myself, but for some other person. This helps me to take a cold, impartial view of the evidence. This helps me eliminate my emotions.
2. While trying to collect the facts about the problem that is worrying me, I sometimes pretend that I am a lawyer preparing to argue the other side of the issue. In other words, I try to get all the facts against myself-all the facts that are damaging to my wishes, all the facts I don't like to face.

Those afraid of the universe as it really is, those who pretend to nonexistent knowledge and envision a Cosmos centered on human beings will prefer the fleeting comforts of superstition.

If a man will devote his time to securing facts in an impartial, objective way, his worries usually evaporate in the light of knowledge."