“If man is to survive, he will have learned to take a delight in the essential differences between men and between cultures. He will learn that differences in ideas and attitudes are a delight, part of life's exciting variety, not something to fear.”

“Star Trek was an attempt to say that humanity will reach maturity and wisdom on the day that it begins not just to tolerate, but take a special delight in differences in ideas and differences in life forms. […] If we cannot learn to actually enjoy those small differences, to take a positive delight in those small differences between our own kind, here on this planet, then we do not deserve to go out into space and meet the diversity that is almost certainly out there.”

“It takes people a long time to learn the difference between talent and genius, especially ambitious young men and women.”

“I learned very early the difference between knowing the name of something and knowing something.”

“Learn the difference between busyness and accomplishments.”

“What you need to learn, children, is the difference between right and wrong in every area of life. And once you learn the difference, you must always choose the right.”