Active or Passive
1. The man is my guide.
2. Happy are they that succeed.

Both are passive

Explanation:

Passive voice is considered any sentence that uses any form of the word "be"

These include:

Am, is, are, was, were, and of course be, being, been

some attention getter quotes to support your thesis regarding brain work could be the following: :

a. storage capacity of your brain is virtually unlimited.

b. your brain produces sufficient electricity to light-up a small bulb.

c. different brain circuits are involved with reading aloud or silently.

d. your brain by itself does not feel pain.

e. reading allows your brain to download info directly.

f. brains of two musicians performing together can synchronize.