An "iamb" is a word or set of words that goes 'da-DAH', like "my KNEE", or "your FACE", or "his DOG", or "come HERE".
Many poems have the same rhythm (beat) in each line, and there are different rhythms they can have. I can show you that, if I take a poem you know, and recite it first with the correct beat, and then with the wrong beat.
Here's the correct beat: MAH-ree HAD a LIT-tle LAMB its FLEECE was WHITE as SNOW.
For the wrong beat, let's use 'iambs' like I explained up above: ma-REE had A lit-TLE lamb ITS fleece WAS white AS snow.
If a poem is in the rhythm of "iambic tetrameter", then each line is made out iambs, and there are 4 of them ("tetra") in each line.
Now I have to try and find an example for you. Thank you very much.
I'll make one up. Remember, an iamb goes 'da-DAH":
my DOG came IN-to SCHOOL one DAY and CHASED the HAM-sters ALL a-ROUND. the PRIN-ci-PLE came IN-to CLASS and TOOK my DOG down TO the POUND.
Wiesel's selfless personality can also be viewed in his close relationship with his dad; Wiesel sacrificed himself numerous times for his father and struggled greatly to keep his dad alive. He could have been like the other sons and abandon him and taken advantage of his food, instead he did the exact opposite.