The Bible says: "It is better to be satisfied with what you have than to be always wanting something else."  - Ecclesiastes 6:9, Today's English Version.
"Swa antswa ku tsakela leswi hi nga na swona ku tlula ku lava swin'wana hikuva sweswo i vuhava swi fana ni ku hlongorisa mheho." - Eklesiasta 6:9, Contemporary English Version.