Whatever your age, you can still increase your knowledge
tell tales out of school
learn to walk before you run
experience is the mother of wisdom
one is never too old to learn
To do as well as expected
do one's homework
pull oneself up by one's own bootstraps
make the grade
cover a lot of ground
To control a person or one's feeling
cut it out
cannot hold the candle to
keep in check
blot one's copybook
All briliant ideas are useless without an aptitude for hard work
90% of inspiration is perspiration
a little learning is a dangerous thing
discontent is the first step in progress
a Jack of all trades is a master of none
To deal with the material that is already familiar
ancient history
cover a lot of ground
go over old ground
with a capital T
Stop doing something
blackboard jungle
cut it out
hold in check
all in a fog
A person cannot expect to get anything without working
90% of inspiration is perspiration
experience is the mother of wisdom
a little learning is a dangerous thing
he that would eat the kernel must crack the nut
Spoil the reputation
strain at the leash
with a capital S
blackboard jungle
blot the copybook
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