In youth we learn; in age we understand.

Dreams are necessary to life.

Knowledge rests not upon truth alone, but upon error also.

Never bend your head. Always hold it high. Look the world straight in the eye.

Knowledge has to be improved, challenged and increased constantly, or it vanishes.

A little learning is a dangerous thing; Drink deep, or taste not the Pierian spring.

Either you run the day or the day runs you.

Tell me and I forget. Teach me and I remember. Involve me and I learn.

You don't learn to walk by following rules. You learn by doing, and by falling over.

Live a life full of humility, gratitude, and intellectual curiosity, and never stop learning.