concentration (psychology) 1 [vynechat] creative ability 1 [vynechat] koncentrácia (psychológia) 1 [vynechat] kreativita 1 [vynechat] leadership 1 [vynechat] perseverance 1 [vynechat] personality development 1 [vynechat] rozvoj osobnosti 1 [vynechat] sebariadenie 1 [vynechat] self-management 1 [vynechat] success 1 [vynechat] vodcovstvo 1 [vynechat] vytrvalosť 1 [vynechat] úspech 1 [vynechat]