子を持って知る親の恩 literally translates as: Only after you have a baby, you would appreciate your parents (feel the way they do, etc).

This is a bit like the “walk a mile in another man's shoes” saying. Basically, it's about you cannot fully understand the plight of others until you experience it yourself. It also shows appreciation for the plight of parents.

This Japanese proverb can also be translated a few more ways:

No man knows what he owes to his parents till he comes to have children of his own.

One knows not what one owes to one's parents till one comes to have children of one's own.

Only after you have a baby, you will appreciate your parents or feel the way they do.

Only after becoming a parent yourself do you realize how much you owe [how indebted you are] to your own parents.

Note: Because this selection contains some special Japanese Hiragana characters, it should be written by a Japanese calligrapher.

奇爾德里斯 is the name Childress in Chinese (Mandarin).

チルドレス is the name Childress in Japanese Katakana.

Note: Because this title is entirely Japanese Katakana, it should be written by a Japanese calligrapher.

爱在心里狠在面皮 literally translates as “Love [your] children in [your] heart, [but] be stern [with them] in [your] manner.”

This is a little like saying “Love your child but don't spare the switch.”

愛の結晶 is a Japanese word that means the crystals or gems of love.

Figuratively, it means the treasures you create with your love (namely, your children). Some will translate this as “fruit of love.”
It's also kind of a nickname for your beloved children.

視卒如嬰兒故可以與之赴深溪視卒如愛子故可與之俱死 is an entry from the 10th section within the Earth/Terrain chapter of Sun Tzu's Art of War.

This is often translated as “Regard your soldiers as your children, and they will follow you into the deepest valleys. Look upon them as your own beloved sons, and they will stand by you even unto death.”