---

Penicillin was indeed the product of accidental discovery, but the discovery was made, and the knowledge developed, because certain scientists had definite goals in mind. "Chance," Pastuer wrote, "favors only the prepared mind." The mind must be prepared not only by scientific training and technological know-how, but also by the awareness of social needs.

---

Science when well-digested is nothing but good sense and reason.

---

Every scientific fulfillment raises new questions; it asks to be surpassed and outdated.

---

Someone has described science as an orderly arrangement of what, at the moment, seems to be facts.

---

The ultimate security is your understanding of reality.

---

If little else, the brain is an educational toy.

---

He who is always his own counselor will often have a fool for his client.

---

Who to himself is law, no law doth need.

---

For want of self-restraint many men are engaged all their lives in fighting with difficulties of their own making, and rendering success impossible by their own cross-grained ungentleness; whilst others, it may be much less gifted, make their way and achieve success by simple patience, equanimity, and self-control.

---

To be deceived by our enemies or betrayed by our friends in insupportable; yet by ourselves we are often content to be so treated.

---