Yuan Fen in Chinese / Japanese...

緣分 or Yuan Fen is the fate or chance that brings people together.

This can also mean a predestined affinity or relationship. Basically this is about destiny.

老當益壯 is a Chinese proverb that means “old but vigorous” or “hale and hearty despite the years.”

Said of someone who is more spirited when he/she grows older.

The story behind this Chinese proverb:

In the Eastern Han Dynasty, there was a man named Ma Yuan. He had been planning to herd animals on the frontier since he was young. When he grew up, Ma became a minor official of a county.

Once, he was sending some prisoners to another location. He felt pity for them, so he set them free, and then he fled to another county in the north. He herded animals there, and thus his dream came true. He always said: “If you want to be a great man, the poorer you are, the firmer in spirit you have to be; the older you are, the more spirited you should be.”

Later, when he was even older, Ma Yuan became a famous general of the Eastern Han Dynasty and contributed to many battles.

略跡原情 is a Chinese proverb that means “to overlook past faults,” or “forgive and forget.”

It's more literally, “Abridge or make small the scars from your past emotions.” You should let it go.

The character breakdown:
略 (lüè) abbreviation; omission; abridge.
跡 (jī) ruins; scar; traces.
原 (yuán) former.
情 (qíng) feeling; emotion.