Some tools were useful for perhaps a decade or so, while others have proved to be of timeless value.
إِنَّ إِحْدَى ٱلْأَدَوَاتِ ٱلَّتِي سَاعَدَتْ كَثِيرِينَ عَلَى ٱلْمُشَارَكَةِ فِي ٱلْكِرَازَةِ هِيَ بِطَاقَةُ ٱلشَّهَادَةِ .‏