Even Einstein had his bad days......

Never regard study as a duty, but as the enviable opportunity to learn to know the liberating influence of beauty in the realm of the spirit for your own personal joy and to the profit of the community to which your later work belongs.
Albert EinsteinUS (German-born) physicist (1879 - 1955)

We are never sure where are studies might lead us. Even if most of us are sure we are not Einstein, we have a contribution to make. To study and achieve to the best of your ablility is a way of acknowledging our uniqueness in the world and that we have an unique contribution to make. God created us to be the only one of a kind and has a unique and special purpose for you all. Working to the best of your ability says thank you to God for your unique gifts and purpose.