不撒大網不得大魚 is a Chinese proverb that literally translates as: [if one does] not cast a big net, [one can] not get big fish.

Figuratively, this means: One cannot make great accomplishments without making great efforts or taking great pains.

This is sort of the fishing version of, “No pain, no gain.”

不痛不強 is a proverb that is close to our idea of “no pain, no gain” in English. It holds this meaning in the context of working out at the gym etc.

不痛不強 means “no pain, no strength,” meaning that if you don't experience a little pain, you will not gain any strength.

痛みなくして得るものなし is a Japanese phrase that means “no pain, no gain.”

This suggests that with pain, a gain must follow.

The pain Kanji here can also be translated as sorrow or suffering. The gain can also mean profit, advantage, or benefit. In the Japanese Buddhist context, that gain Kanji can mean rebirth in paradise, entering nirvana.

The character breakdown:
痛みなく (itami naku) pain; ache; sore; grief; distress. The naku part adds the meaning of “a lot of” or “extended”
して (shite) and then. (indicates a causative expression; acts as a connective particle)
得る (eru) to get; to acquire; to obtain; to procure; to earn; to win; to gain; to secure; to attain.
もの (mono) conjunctive particle indicating a cause or reason.
なし (nashi) none of; -less; without; no.

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

苦は楽の種 is a Japanese proverb that means “One cannot have pleasure without pain.”

It's one of a few Japanese ways to say, “No pain, no gain.”

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

把舵的不慌乘船的稳当 is a Chinese proverb that literally translates as: [If the] helmsman is not nervous, the passengers [will feel] secure.

Figuratively, this means: If the leader appears confident, his/her followers will gain confidence also.

This is a great suggestion that a confident leader inspires confidence in his/her troops or followers. Of course, a nervous leader will create fear in troops or followers.

In 632 BC, Duke Wen of the Kingdom of Jin was about to lead an army against the forces of the Kingdom of Chu.
The Duke asked one of his advisers, Jiu Fan, how they could win the impending battle, as they were drastically outnumbered.
Jiu Fan said, “All is fair in war,” and suggested a plan of dishonorable tactics (cheating).
The Duke was unsure of this advice, so he asked another adviser, Yong Ji, who replied, “If you catch fish by draining the pond, you can certainly get all the fish. But there will be no fish the following year. You can cheat this one time in battle, but such tactics can only be used once, as the enemy will be wise in future encounters.”

The Duke heard the words of his wiser adviser but cheated to gain victory in the battle. However, he rewarded Yong Ji more than Jiu Fan at the victory celebration, stating that while Jiu Fan's advice gained one victory, the wise words of Yong Ji would last forever.

This Chinese idiom/proverb is still used, over 2600 years later to remind people not to burn bridges, cheat, or dishonor themselves in exchange for a short-term gain while sacrificing the future.

竭澤而漁 is very similar to the meaning of the English phrase, “Kill the goose that lays the golden eggs.”