(a) to persuade people to study hard motto:

1

Young people who don't work hard are pathetic. -"Long Songs"

2

If you study hard, you will become a great talent. Lincoln

three

The more a person knows, the stronger he is. Gorky

four

Wisdom lies in learning, and genius lies in accumulation. -Lenin

five

Diligence is good at diligence, but not good at playing. -Han Yu's "Learning Solution"

(2) Famous sayings about respecting the elderly:

1

It is better to be a bird and a beast than to be unfilial to one's relatives. -"Song of Persuading Filial Piety"

2

I am old, and people are old; Young people, young people, young people. -"Mencius Hui Liang Wang Shang"

three

However, an inch of long grass is a little sentimental, and it has won three spring rays. -Meng Jiao's Wandering Sons

(3)

Cherish the famous saying of "time":

1

Time is like water in a sponge. As long as you are willing to squeeze it, it always exists. -Lu Xun

2

Time abandoned him who abandoned time. -Shakespeare

three

An inch of time, an inch of gold can't buy an inch of time. -"Augmented Sage"

If you don't understand this question, you can ask. If you are satisfied, please click "Like" or "Adopt as Satisfied Answer". If you have other questions, please adopt this question, and then click to ask me for help. Not easy to answer, please understand, thank you. I wish you progress in your study!