open and candid (idiom); straightforward and upright
光 · 6 strokes
Pictograph of fire on top of a person.
明 · 8 strokes
The character was originally depicted moonlight (月) shining through a window (囧). The 囧 component was later reanalyzed as 日 (sun).
磊 · 15 strokes
Many rocks 石 piled up
落 · 12 strokes
Phonosemantic compound. 艹 represents the meaning and 洛 represents the sound.
做人要光明磊落,不要背后搞小动作。
One should be open and aboveboard, not scheming behind others' backs.